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Finding the Fourth Proportional to 7,430.59, 11,143.22 and 3,481.17

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Solution

The fourth proportional to 7,430.59, 11,143.22 and 3,481.17 is: 5,220.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.59 : 11,143.22 = 3,481.17 : x
  2. Step 2: Convert to fraction form
    7,430.59/11,143.22 = 3,481.17/x
  3. Step 3: Cross multiply
    7,430.59x = 11,143.22 × 3,481.17
  4. Step 4: Simplify right side
    7,430.59x = 38,791,443.17
  5. Step 5: Solve for x
    x = 38,791,443.17/7,430.59
  6. Step 6: Final answer
    x = 5,220.51

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