Home / 1,572.22-2,167.90-1,241.44

Finding the Fourth Proportional to 1,572.22, 2,167.90 and 1,241.44

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Solution

The fourth proportional to 1,572.22, 2,167.90 and 1,241.44 is: 1,711.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.22 : 2,167.90 = 1,241.44 : x
  2. Step 2: Convert to fraction form
    1,572.22/2,167.90 = 1,241.44/x
  3. Step 3: Cross multiply
    1,572.22x = 2,167.90 × 1,241.44
  4. Step 4: Simplify right side
    1,572.22x = 2,691,309.25
  5. Step 5: Solve for x
    x = 2,691,309.25/1,572.22
  6. Step 6: Final answer
    x = 1,711.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.