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Finding the Fourth Proportional to 2,387.91, 3,582.92 and 927.17

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Solution

The fourth proportional to 2,387.91, 3,582.92 and 927.17 is: 1,391.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.91 : 3,582.92 = 927.17 : x
  2. Step 2: Convert to fraction form
    2,387.91/3,582.92 = 927.17/x
  3. Step 3: Cross multiply
    2,387.91x = 3,582.92 × 927.17
  4. Step 4: Simplify right side
    2,387.91x = 3,321,975.94
  5. Step 5: Solve for x
    x = 3,321,975.94/2,387.91
  6. Step 6: Final answer
    x = 1,391.16

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1.5x scale

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.