Home / 3,872.16-5,808.42-1,681.02

Finding the Fourth Proportional to 3,872.16, 5,808.42 and 1,681.02

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Solution

The fourth proportional to 3,872.16, 5,808.42 and 1,681.02 is: 2,521.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.16 : 5,808.42 = 1,681.02 : x
  2. Step 2: Convert to fraction form
    3,872.16/5,808.42 = 1,681.02/x
  3. Step 3: Cross multiply
    3,872.16x = 5,808.42 × 1,681.02
  4. Step 4: Simplify right side
    3,872.16x = 9,764,070.19
  5. Step 5: Solve for x
    x = 9,764,070.19/3,872.16
  6. Step 6: Final answer
    x = 2,521.61

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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.