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Finding the Fourth Proportional to 5,787.52, 8,678.97 and 2,087.73

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Solution

The fourth proportional to 5,787.52, 8,678.97 and 2,087.73 is: 3,130.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.52 : 8,678.97 = 2,087.73 : x
  2. Step 2: Convert to fraction form
    5,787.52/8,678.97 = 2,087.73/x
  3. Step 3: Cross multiply
    5,787.52x = 8,678.97 × 2,087.73
  4. Step 4: Simplify right side
    5,787.52x = 18,119,358.01
  5. Step 5: Solve for x
    x = 18,119,358.01/5,787.52
  6. Step 6: Final answer
    x = 3,130.76

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1.5x scale

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.