Home / 7,789.65-10,749.94-4,253.09

Finding the Fourth Proportional to 7,789.65, 10,749.94 and 4,253.09

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Solution

The fourth proportional to 7,789.65, 10,749.94 and 4,253.09 is: 5,869.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.65 : 10,749.94 = 4,253.09 : x
  2. Step 2: Convert to fraction form
    7,789.65/10,749.94 = 4,253.09/x
  3. Step 3: Cross multiply
    7,789.65x = 10,749.94 × 4,253.09
  4. Step 4: Simplify right side
    7,789.65x = 45,720,408.56
  5. Step 5: Solve for x
    x = 45,720,408.56/7,789.65
  6. Step 6: Final answer
    x = 5,869.38

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Find fourth proportional to 3,894.82, 5,374.97 and 2,126.54
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Double scale
Find fourth proportional to 7,790.65, 10,751.32 and 4,254.09
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.