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Finding the Fourth Proportional to 3,874.53, 5,808.53 and 1,681.61

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Solution

The fourth proportional to 3,874.53, 5,808.53 and 1,681.61 is: 2,521.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.53 : 5,808.53 = 1,681.61 : x
  2. Step 2: Convert to fraction form
    3,874.53/5,808.53 = 1,681.61/x
  3. Step 3: Cross multiply
    3,874.53x = 5,808.53 × 1,681.61
  4. Step 4: Simplify right side
    3,874.53x = 9,767,682.13
  5. Step 5: Solve for x
    x = 9,767,682.13/3,874.53
  6. Step 6: Final answer
    x = 2,521.00

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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.