Home / 3,539.12-4,882.56-2,139.44

Finding the Fourth Proportional to 3,539.12, 4,882.56 and 2,139.44

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Solution

The fourth proportional to 3,539.12, 4,882.56 and 2,139.44 is: 2,951.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.12 : 4,882.56 = 2,139.44 : x
  2. Step 2: Convert to fraction form
    3,539.12/4,882.56 = 2,139.44/x
  3. Step 3: Cross multiply
    3,539.12x = 4,882.56 × 2,139.44
  4. Step 4: Simplify right side
    3,539.12x = 10,445,944.17
  5. Step 5: Solve for x
    x = 10,445,944.17/3,539.12
  6. Step 6: Final answer
    x = 2,951.57

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1.5x scale

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.