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Finding the Fourth Proportional to 3,449.82, 5,175.90 and 1,503.30

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Solution

The fourth proportional to 3,449.82, 5,175.90 and 1,503.30 is: 2,255.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.82 : 5,175.90 = 1,503.30 : x
  2. Step 2: Convert to fraction form
    3,449.82/5,175.90 = 1,503.30/x
  3. Step 3: Cross multiply
    3,449.82x = 5,175.90 × 1,503.30
  4. Step 4: Simplify right side
    3,449.82x = 7,780,930.47
  5. Step 5: Solve for x
    x = 7,780,930.47/3,449.82
  6. Step 6: Final answer
    x = 2,255.46

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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.