Home / 7,449.30-11,175.30-3,742.20

Finding the Fourth Proportional to 7,449.30, 11,175.30 and 3,742.20

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Solution

The fourth proportional to 7,449.30, 11,175.30 and 3,742.20 is: 5,613.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.30 : 11,175.30 = 3,742.20 : x
  2. Step 2: Convert to fraction form
    7,449.30/11,175.30 = 3,742.20/x
  3. Step 3: Cross multiply
    7,449.30x = 11,175.30 × 3,742.20
  4. Step 4: Simplify right side
    7,449.30x = 41,820,207.66
  5. Step 5: Solve for x
    x = 41,820,207.66/7,449.30
  6. Step 6: Final answer
    x = 5,613.98

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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.