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Finding the Fourth Proportional to 1,787.74, 2,466.90 and 1,001.86

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Solution

The fourth proportional to 1,787.74, 2,466.90 and 1,001.86 is: 1,382.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.74 : 2,466.90 = 1,001.86 : x
  2. Step 2: Convert to fraction form
    1,787.74/2,466.90 = 1,001.86/x
  3. Step 3: Cross multiply
    1,787.74x = 2,466.90 × 1,001.86
  4. Step 4: Simplify right side
    1,787.74x = 2,471,488.43
  5. Step 5: Solve for x
    x = 2,471,488.43/1,787.74
  6. Step 6: Final answer
    x = 1,382.47

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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.