Home / 7,540.12-11,310.20-3,154.50

Finding the Fourth Proportional to 7,540.12, 11,310.20 and 3,154.50

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Solution

The fourth proportional to 7,540.12, 11,310.20 and 3,154.50 is: 4,731.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.12 : 11,310.20 = 3,154.50 : x
  2. Step 2: Convert to fraction form
    7,540.12/11,310.20 = 3,154.50/x
  3. Step 3: Cross multiply
    7,540.12x = 11,310.20 × 3,154.50
  4. Step 4: Simplify right side
    7,540.12x = 35,678,033.79
  5. Step 5: Solve for x
    x = 35,678,033.79/7,540.12
  6. Step 6: Final answer
    x = 4,731.76

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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.