Home / 3,151.08-4,728.45-2,982.20

Finding the Fourth Proportional to 3,151.08, 4,728.45 and 2,982.20

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Solution

The fourth proportional to 3,151.08, 4,728.45 and 2,982.20 is: 4,475.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.08 : 4,728.45 = 2,982.20 : x
  2. Step 2: Convert to fraction form
    3,151.08/4,728.45 = 2,982.20/x
  3. Step 3: Cross multiply
    3,151.08x = 4,728.45 × 2,982.20
  4. Step 4: Simplify right side
    3,151.08x = 14,101,159.95
  5. Step 5: Solve for x
    x = 14,101,159.95/3,151.08
  6. Step 6: Final answer
    x = 4,475.02

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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.