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Finding the Fourth Proportional to 6,387.84, 9,582.48 and 2,924.64

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Solution

The fourth proportional to 6,387.84, 9,582.48 and 2,924.64 is: 4,387.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.84 : 9,582.48 = 2,924.64 : x
  2. Step 2: Convert to fraction form
    6,387.84/9,582.48 = 2,924.64/x
  3. Step 3: Cross multiply
    6,387.84x = 9,582.48 × 2,924.64
  4. Step 4: Simplify right side
    6,387.84x = 28,025,304.31
  5. Step 5: Solve for x
    x = 28,025,304.31/6,387.84
  6. Step 6: Final answer
    x = 4,387.29

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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.