Home / 1,787.72-2,466.94-1,001.76

Finding the Fourth Proportional to 1,787.72, 2,466.94 and 1,001.76

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Solution

The fourth proportional to 1,787.72, 2,466.94 and 1,001.76 is: 1,382.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.72 : 2,466.94 = 1,001.76 : x
  2. Step 2: Convert to fraction form
    1,787.72/2,466.94 = 1,001.76/x
  3. Step 3: Cross multiply
    1,787.72x = 2,466.94 × 1,001.76
  4. Step 4: Simplify right side
    1,787.72x = 2,471,281.81
  5. Step 5: Solve for x
    x = 2,471,281.81/1,787.72
  6. Step 6: Final answer
    x = 1,382.37

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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.