Home / 2,642.20-3,963.48-1,180.96

Finding the Fourth Proportional to 2,642.20, 3,963.48 and 1,180.96

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Solution

The fourth proportional to 2,642.20, 3,963.48 and 1,180.96 is: 1,771.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.20 : 3,963.48 = 1,180.96 : x
  2. Step 2: Convert to fraction form
    2,642.20/3,963.48 = 1,180.96/x
  3. Step 3: Cross multiply
    2,642.20x = 3,963.48 × 1,180.96
  4. Step 4: Simplify right side
    2,642.20x = 4,680,711.34
  5. Step 5: Solve for x
    x = 4,680,711.34/2,642.20
  6. Step 6: Final answer
    x = 1,771.52

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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.