Home / 1,787.28-2,466.50-1,001.39

Finding the Fourth Proportional to 1,787.28, 2,466.50 and 1,001.39

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Solution

The fourth proportional to 1,787.28, 2,466.50 and 1,001.39 is: 1,381.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.28 : 2,466.50 = 1,001.39 : x
  2. Step 2: Convert to fraction form
    1,787.28/2,466.50 = 1,001.39/x
  3. Step 3: Cross multiply
    1,787.28x = 2,466.50 × 1,001.39
  4. Step 4: Simplify right side
    1,787.28x = 2,469,911.10
  5. Step 5: Solve for x
    x = 2,469,911.10/1,787.28
  6. Step 6: Final answer
    x = 1,381.94

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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.