Home / 5,421.52-8,132.82-1,959.04

Finding the Fourth Proportional to 5,421.52, 8,132.82 and 1,959.04

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Solution

The fourth proportional to 5,421.52, 8,132.82 and 1,959.04 is: 2,938.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.52 : 8,132.82 = 1,959.04 : x
  2. Step 2: Convert to fraction form
    5,421.52/8,132.82 = 1,959.04/x
  3. Step 3: Cross multiply
    5,421.52x = 8,132.82 × 1,959.04
  4. Step 4: Simplify right side
    5,421.52x = 15,932,519.69
  5. Step 5: Solve for x
    x = 15,932,519.69/5,421.52
  6. Step 6: Final answer
    x = 2,938.76

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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.