Home / 3,451.82-5,175.60-1,478.74

Finding the Fourth Proportional to 3,451.82, 5,175.60 and 1,478.74

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Solution

The fourth proportional to 3,451.82, 5,175.60 and 1,478.74 is: 2,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.82 : 5,175.60 = 1,478.74 : x
  2. Step 2: Convert to fraction form
    3,451.82/5,175.60 = 1,478.74/x
  3. Step 3: Cross multiply
    3,451.82x = 5,175.60 × 1,478.74
  4. Step 4: Simplify right side
    3,451.82x = 7,653,366.74
  5. Step 5: Solve for x
    x = 7,653,366.74/3,451.82
  6. Step 6: Final answer
    x = 2,217.20

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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.