Home / 1,787.76-2,467.20-1,001.82

Finding the Fourth Proportional to 1,787.76, 2,467.20 and 1,001.82

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Solution

The fourth proportional to 1,787.76, 2,467.20 and 1,001.82 is: 1,382.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.76 : 2,467.20 = 1,001.82 : x
  2. Step 2: Convert to fraction form
    1,787.76/2,467.20 = 1,001.82/x
  3. Step 3: Cross multiply
    1,787.76x = 2,467.20 × 1,001.82
  4. Step 4: Simplify right side
    1,787.76x = 2,471,690.30
  5. Step 5: Solve for x
    x = 2,471,690.30/1,787.76
  6. Step 6: Final answer
    x = 1,382.56

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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.