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Finding the Fourth Proportional to 1,392.38, 2,088.60 and 467.97

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Solution

The fourth proportional to 1,392.38, 2,088.60 and 467.97 is: 701.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392.38 : 2,088.60 = 467.97 : x
  2. Step 2: Convert to fraction form
    1,392.38/2,088.60 = 467.97/x
  3. Step 3: Cross multiply
    1,392.38x = 2,088.60 × 467.97
  4. Step 4: Simplify right side
    1,392.38x = 977,402.14
  5. Step 5: Solve for x
    x = 977,402.14/1,392.38
  6. Step 6: Final answer
    x = 701.97

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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.