Home / 6,145.20-8,480.88-3,493.44

Finding the Fourth Proportional to 6,145.20, 8,480.88 and 3,493.44

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Solution

The fourth proportional to 6,145.20, 8,480.88 and 3,493.44 is: 4,821.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.20 : 8,480.88 = 3,493.44 : x
  2. Step 2: Convert to fraction form
    6,145.20/8,480.88 = 3,493.44/x
  3. Step 3: Cross multiply
    6,145.20x = 8,480.88 × 3,493.44
  4. Step 4: Simplify right side
    6,145.20x = 29,627,445.43
  5. Step 5: Solve for x
    x = 29,627,445.43/6,145.20
  6. Step 6: Final answer
    x = 4,821.23

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.