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Finding the Fourth Proportional to 7,642.92, 11,470.86 and 3,029.16

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Solution

The fourth proportional to 7,642.92, 11,470.86 and 3,029.16 is: 4,546.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642.92 : 11,470.86 = 3,029.16 : x
  2. Step 2: Convert to fraction form
    7,642.92/11,470.86 = 3,029.16/x
  3. Step 3: Cross multiply
    7,642.92x = 11,470.86 × 3,029.16
  4. Step 4: Simplify right side
    7,642.92x = 34,747,070.28
  5. Step 5: Solve for x
    x = 34,747,070.28/7,642.92
  6. Step 6: Final answer
    x = 4,546.31

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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.