Home / 5,649.40-8,482.20-4,272.40

Finding the Fourth Proportional to 5,649.40, 8,482.20 and 4,272.40

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Solution

The fourth proportional to 5,649.40, 8,482.20 and 4,272.40 is: 6,414.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.40 : 8,482.20 = 4,272.40 : x
  2. Step 2: Convert to fraction form
    5,649.40/8,482.20 = 4,272.40/x
  3. Step 3: Cross multiply
    5,649.40x = 8,482.20 × 4,272.40
  4. Step 4: Simplify right side
    5,649.40x = 36,239,351.28
  5. Step 5: Solve for x
    x = 36,239,351.28/5,649.40
  6. Step 6: Final answer
    x = 6,414.73

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Half scale
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Double scale
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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.