Home / 7,471.20-10,311.60-4,329.12

Finding the Fourth Proportional to 7,471.20, 10,311.60 and 4,329.12

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Solution

The fourth proportional to 7,471.20, 10,311.60 and 4,329.12 is: 5,974.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.20 : 10,311.60 = 4,329.12 : x
  2. Step 2: Convert to fraction form
    7,471.20/10,311.60 = 4,329.12/x
  3. Step 3: Cross multiply
    7,471.20x = 10,311.60 × 4,329.12
  4. Step 4: Simplify right side
    7,471.20x = 44,640,153.79
  5. Step 5: Solve for x
    x = 44,640,153.79/7,471.20
  6. Step 6: Final answer
    x = 5,974.96

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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.