Home / 7,524.20-11,288.10-3,139.22

Finding the Fourth Proportional to 7,524.20, 11,288.10 and 3,139.22

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Solution

The fourth proportional to 7,524.20, 11,288.10 and 3,139.22 is: 4,709.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,524.20 : 11,288.10 = 3,139.22 : x
  2. Step 2: Convert to fraction form
    7,524.20/11,288.10 = 3,139.22/x
  3. Step 3: Cross multiply
    7,524.20x = 11,288.10 × 3,139.22
  4. Step 4: Simplify right side
    7,524.20x = 35,435,829.28
  5. Step 5: Solve for x
    x = 35,435,829.28/7,524.20
  6. Step 6: Final answer
    x = 4,709.58

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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.