Home / 7,789.56-10,749.78-4,252.74

Finding the Fourth Proportional to 7,789.56, 10,749.78 and 4,252.74

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Solution

The fourth proportional to 7,789.56, 10,749.78 and 4,252.74 is: 5,868.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.56 : 10,749.78 = 4,252.74 : x
  2. Step 2: Convert to fraction form
    7,789.56/10,749.78 = 4,252.74/x
  3. Step 3: Cross multiply
    7,789.56x = 10,749.78 × 4,252.74
  4. Step 4: Simplify right side
    7,789.56x = 45,716,019.40
  5. Step 5: Solve for x
    x = 45,716,019.40/7,789.56
  6. Step 6: Final answer
    x = 5,868.88

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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.