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Finding the Fourth Proportional to 7,430, 11,140.68 and 2,496.92

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Solution

The fourth proportional to 7,430, 11,140.68 and 2,496.92 is: 3,743.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430 : 11,140.68 = 2,496.92 : x
  2. Step 2: Convert to fraction form
    7,430/11,140.68 = 2,496.92/x
  3. Step 3: Cross multiply
    7,430x = 11,140.68 × 2,496.92
  4. Step 4: Simplify right side
    7,430x = 27,817,386.71
  5. Step 5: Solve for x
    x = 27,817,386.71/7,430
  6. Step 6: Final answer
    x = 3,743.93

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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.