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Finding the Fourth Proportional to 2,531.43, 3,798.86 and 888

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Solution

The fourth proportional to 2,531.43, 3,798.86 and 888 is: 1,332.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.43 : 3,798.86 = 888 : x
  2. Step 2: Convert to fraction form
    2,531.43/3,798.86 = 888/x
  3. Step 3: Cross multiply
    2,531.43x = 3,798.86 × 888
  4. Step 4: Simplify right side
    2,531.43x = 3,373,387.68
  5. Step 5: Solve for x
    x = 3,373,387.68/2,531.43
  6. Step 6: Final answer
    x = 1,332.60

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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.