Home / 7,428.29-10,248.12-4,240.71

Finding the Fourth Proportional to 7,428.29, 10,248.12 and 4,240.71

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Solution

The fourth proportional to 7,428.29, 10,248.12 and 4,240.71 is: 5,850.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.29 : 10,248.12 = 4,240.71 : x
  2. Step 2: Convert to fraction form
    7,428.29/10,248.12 = 4,240.71/x
  3. Step 3: Cross multiply
    7,428.29x = 10,248.12 × 4,240.71
  4. Step 4: Simplify right side
    7,428.29x = 43,459,304.97
  5. Step 5: Solve for x
    x = 43,459,304.97/7,428.29
  6. Step 6: Final answer
    x = 5,850.52

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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.