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Finding the Fourth Proportional to 7,449.60, 11,175.60 and 2,519.53

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Solution

The fourth proportional to 7,449.60, 11,175.60 and 2,519.53 is: 3,779.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.60 : 11,175.60 = 2,519.53 : x
  2. Step 2: Convert to fraction form
    7,449.60/11,175.60 = 2,519.53/x
  3. Step 3: Cross multiply
    7,449.60x = 11,175.60 × 2,519.53
  4. Step 4: Simplify right side
    7,449.60x = 28,157,259.47
  5. Step 5: Solve for x
    x = 28,157,259.47/7,449.60
  6. Step 6: Final answer
    x = 3,779.70

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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.