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Finding the Fourth Proportional to 1,494.90, 2,062.17 and 888.90

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Solution

The fourth proportional to 1,494.90, 2,062.17 and 888.90 is: 1,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.90 : 2,062.17 = 888.90 : x
  2. Step 2: Convert to fraction form
    1,494.90/2,062.17 = 888.90/x
  3. Step 3: Cross multiply
    1,494.90x = 2,062.17 × 888.90
  4. Step 4: Simplify right side
    1,494.90x = 1,833,062.91
  5. Step 5: Solve for x
    x = 1,833,062.91/1,494.90
  6. Step 6: Final answer
    x = 1,226.21

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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.