Home / 7,191.62-10,787.49-2,261.15

Finding the Fourth Proportional to 7,191.62, 10,787.49 and 2,261.15

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Solution

The fourth proportional to 7,191.62, 10,787.49 and 2,261.15 is: 3,391.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.62 : 10,787.49 = 2,261.15 : x
  2. Step 2: Convert to fraction form
    7,191.62/10,787.49 = 2,261.15/x
  3. Step 3: Cross multiply
    7,191.62x = 10,787.49 × 2,261.15
  4. Step 4: Simplify right side
    7,191.62x = 24,392,079.08
  5. Step 5: Solve for x
    x = 24,392,079.08/7,191.62
  6. Step 6: Final answer
    x = 3,391.74

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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.