Home / 5,691.41-8,531.25-2,180.45

Finding the Fourth Proportional to 5,691.41, 8,531.25 and 2,180.45

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Solution

The fourth proportional to 5,691.41, 8,531.25 and 2,180.45 is: 3,268.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.41 : 8,531.25 = 2,180.45 : x
  2. Step 2: Convert to fraction form
    5,691.41/8,531.25 = 2,180.45/x
  3. Step 3: Cross multiply
    5,691.41x = 8,531.25 × 2,180.45
  4. Step 4: Simplify right side
    5,691.41x = 18,601,964.06
  5. Step 5: Solve for x
    x = 18,601,964.06/5,691.41
  6. Step 6: Final answer
    x = 3,268.43

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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.