Home / 5,581.48-8,372.43-1,421.59

Finding the Fourth Proportional to 5,581.48, 8,372.43 and 1,421.59

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Solution

The fourth proportional to 5,581.48, 8,372.43 and 1,421.59 is: 2,132.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581.48 : 8,372.43 = 1,421.59 : x
  2. Step 2: Convert to fraction form
    5,581.48/8,372.43 = 1,421.59/x
  3. Step 3: Cross multiply
    5,581.48x = 8,372.43 × 1,421.59
  4. Step 4: Simplify right side
    5,581.48x = 11,902,120.90
  5. Step 5: Solve for x
    x = 11,902,120.90/5,581.48
  6. Step 6: Final answer
    x = 2,132.43

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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.