Home / 7,431.38-10,255.42-4,074.50

Finding the Fourth Proportional to 7,431.38, 10,255.42 and 4,074.50

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Solution

The fourth proportional to 7,431.38, 10,255.42 and 4,074.50 is: 5,622.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.38 : 10,255.42 = 4,074.50 : x
  2. Step 2: Convert to fraction form
    7,431.38/10,255.42 = 4,074.50/x
  3. Step 3: Cross multiply
    7,431.38x = 10,255.42 × 4,074.50
  4. Step 4: Simplify right side
    7,431.38x = 41,785,708.79
  5. Step 5: Solve for x
    x = 41,785,708.79/7,431.38
  6. Step 6: Final answer
    x = 5,622.87

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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.