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Finding the Fourth Proportional to 5,287.62, 7,296.62 and 2,929.58

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Solution

The fourth proportional to 5,287.62, 7,296.62 and 2,929.58 is: 4,042.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.62 : 7,296.62 = 2,929.58 : x
  2. Step 2: Convert to fraction form
    5,287.62/7,296.62 = 2,929.58/x
  3. Step 3: Cross multiply
    5,287.62x = 7,296.62 × 2,929.58
  4. Step 4: Simplify right side
    5,287.62x = 21,376,032.02
  5. Step 5: Solve for x
    x = 21,376,032.02/5,287.62
  6. Step 6: Final answer
    x = 4,042.66

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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.