Home / 5,651.55-8,472.30-2,139.11

Finding the Fourth Proportional to 5,651.55, 8,472.30 and 2,139.11

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Solution

The fourth proportional to 5,651.55, 8,472.30 and 2,139.11 is: 3,206.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651.55 : 8,472.30 = 2,139.11 : x
  2. Step 2: Convert to fraction form
    5,651.55/8,472.30 = 2,139.11/x
  3. Step 3: Cross multiply
    5,651.55x = 8,472.30 × 2,139.11
  4. Step 4: Simplify right side
    5,651.55x = 18,123,163.04
  5. Step 5: Solve for x
    x = 18,123,163.04/5,651.55
  6. Step 6: Final answer
    x = 3,206.76

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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.