Home / 7,514.40-11,275.20-3,135.60

Finding the Fourth Proportional to 7,514.40, 11,275.20 and 3,135.60

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Solution

The fourth proportional to 7,514.40, 11,275.20 and 3,135.60 is: 4,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,514.40 : 11,275.20 = 3,135.60 : x
  2. Step 2: Convert to fraction form
    7,514.40/11,275.20 = 3,135.60/x
  3. Step 3: Cross multiply
    7,514.40x = 11,275.20 × 3,135.60
  4. Step 4: Simplify right side
    7,514.40x = 35,354,517.12
  5. Step 5: Solve for x
    x = 35,354,517.12/7,514.40
  6. Step 6: Final answer
    x = 4,704.90

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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.