Home / 1,787.13-2,680.96-554.64

Finding the Fourth Proportional to 1,787.13, 2,680.96 and 554.64

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Solution

The fourth proportional to 1,787.13, 2,680.96 and 554.64 is: 832.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.13 : 2,680.96 = 554.64 : x
  2. Step 2: Convert to fraction form
    1,787.13/2,680.96 = 554.64/x
  3. Step 3: Cross multiply
    1,787.13x = 2,680.96 × 554.64
  4. Step 4: Simplify right side
    1,787.13x = 1,486,966.90
  5. Step 5: Solve for x
    x = 1,486,966.90/1,787.13
  6. Step 6: Final answer
    x = 832.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.