Home / 7,789.80-10,749.96-4,253.09

Finding the Fourth Proportional to 7,789.80, 10,749.96 and 4,253.09

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Solution

The fourth proportional to 7,789.80, 10,749.96 and 4,253.09 is: 5,869.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.80 : 10,749.96 = 4,253.09 : x
  2. Step 2: Convert to fraction form
    7,789.80/10,749.96 = 4,253.09/x
  3. Step 3: Cross multiply
    7,789.80x = 10,749.96 × 4,253.09
  4. Step 4: Simplify right side
    7,789.80x = 45,720,493.63
  5. Step 5: Solve for x
    x = 45,720,493.63/7,789.80
  6. Step 6: Final answer
    x = 5,869.28

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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.