Home / 6,531.91-9,791.15-2,581.56

Finding the Fourth Proportional to 6,531.91, 9,791.15 and 2,581.56

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Solution

The fourth proportional to 6,531.91, 9,791.15 and 2,581.56 is: 3,869.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.91 : 9,791.15 = 2,581.56 : x
  2. Step 2: Convert to fraction form
    6,531.91/9,791.15 = 2,581.56/x
  3. Step 3: Cross multiply
    6,531.91x = 9,791.15 × 2,581.56
  4. Step 4: Simplify right side
    6,531.91x = 25,276,459.89
  5. Step 5: Solve for x
    x = 25,276,459.89/6,531.91
  6. Step 6: Final answer
    x = 3,869.69

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1.5x scale

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.