Home / 7,428.38-11,140.70-2,497.91

Finding the Fourth Proportional to 7,428.38, 11,140.70 and 2,497.91

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Solution

The fourth proportional to 7,428.38, 11,140.70 and 2,497.91 is: 3,746.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.38 : 11,140.70 = 2,497.91 : x
  2. Step 2: Convert to fraction form
    7,428.38/11,140.70 = 2,497.91/x
  3. Step 3: Cross multiply
    7,428.38x = 11,140.70 × 2,497.91
  4. Step 4: Simplify right side
    7,428.38x = 27,828,397.74
  5. Step 5: Solve for x
    x = 27,828,397.74/7,428.38
  6. Step 6: Final answer
    x = 3,746.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.