Home / 3,614.30-5,421.45-1,421.83

Finding the Fourth Proportional to 3,614.30, 5,421.45 and 1,421.83

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Solution

The fourth proportional to 3,614.30, 5,421.45 and 1,421.83 is: 2,132.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.30 : 5,421.45 = 1,421.83 : x
  2. Step 2: Convert to fraction form
    3,614.30/5,421.45 = 1,421.83/x
  3. Step 3: Cross multiply
    3,614.30x = 5,421.45 × 1,421.83
  4. Step 4: Simplify right side
    3,614.30x = 7,708,380.25
  5. Step 5: Solve for x
    x = 7,708,380.25/3,614.30
  6. Step 6: Final answer
    x = 2,132.75

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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.