Home / 3,630.24-5,445.36-1,165.20

Finding the Fourth Proportional to 3,630.24, 5,445.36 and 1,165.20

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Solution

The fourth proportional to 3,630.24, 5,445.36 and 1,165.20 is: 1,747.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.24 : 5,445.36 = 1,165.20 : x
  2. Step 2: Convert to fraction form
    3,630.24/5,445.36 = 1,165.20/x
  3. Step 3: Cross multiply
    3,630.24x = 5,445.36 × 1,165.20
  4. Step 4: Simplify right side
    3,630.24x = 6,344,933.47
  5. Step 5: Solve for x
    x = 6,344,933.47/3,630.24
  6. Step 6: Final answer
    x = 1,747.80

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Similar ratio
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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.