Home / 6,632.20-9,153.16-3,980.28

Finding the Fourth Proportional to 6,632.20, 9,153.16 and 3,980.28

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Solution

The fourth proportional to 6,632.20, 9,153.16 and 3,980.28 is: 5,493.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,632.20 : 9,153.16 = 3,980.28 : x
  2. Step 2: Convert to fraction form
    6,632.20/9,153.16 = 3,980.28/x
  3. Step 3: Cross multiply
    6,632.20x = 9,153.16 × 3,980.28
  4. Step 4: Simplify right side
    6,632.20x = 36,432,139.68
  5. Step 5: Solve for x
    x = 36,432,139.68/6,632.20
  6. Step 6: Final answer
    x = 5,493.22

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.