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Finding the Fourth Proportional to 5,682.30, 8,523.93 and 1,787.82

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Solution

The fourth proportional to 5,682.30, 8,523.93 and 1,787.82 is: 2,681.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,682.30 : 8,523.93 = 1,787.82 : x
  2. Step 2: Convert to fraction form
    5,682.30/8,523.93 = 1,787.82/x
  3. Step 3: Cross multiply
    5,682.30x = 8,523.93 × 1,787.82
  4. Step 4: Simplify right side
    5,682.30x = 15,239,252.53
  5. Step 5: Solve for x
    x = 15,239,252.53/5,682.30
  6. Step 6: Final answer
    x = 2,681.88

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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.