Home / 3,630.40-5,445.60-1,165.24

Finding the Fourth Proportional to 3,630.40, 5,445.60 and 1,165.24

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Solution

The fourth proportional to 3,630.40, 5,445.60 and 1,165.24 is: 1,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.40 : 5,445.60 = 1,165.24 : x
  2. Step 2: Convert to fraction form
    3,630.40/5,445.60 = 1,165.24/x
  3. Step 3: Cross multiply
    3,630.40x = 5,445.60 × 1,165.24
  4. Step 4: Simplify right side
    3,630.40x = 6,345,430.94
  5. Step 5: Solve for x
    x = 6,345,430.94/3,630.40
  6. Step 6: Final answer
    x = 1,747.86

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Double scale
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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.