Home / 2,691.12-3,713.34-1,572.11

Finding the Fourth Proportional to 2,691.12, 3,713.34 and 1,572.11

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Solution

The fourth proportional to 2,691.12, 3,713.34 and 1,572.11 is: 2,169.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.12 : 3,713.34 = 1,572.11 : x
  2. Step 2: Convert to fraction form
    2,691.12/3,713.34 = 1,572.11/x
  3. Step 3: Cross multiply
    2,691.12x = 3,713.34 × 1,572.11
  4. Step 4: Simplify right side
    2,691.12x = 5,837,780.20
  5. Step 5: Solve for x
    x = 5,837,780.20/2,691.12
  6. Step 6: Final answer
    x = 2,169.27

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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.