Home / 2,262-3,121.56-2,132.40

Finding the Fourth Proportional to 2,262, 3,121.56 and 2,132.40

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Solution

The fourth proportional to 2,262, 3,121.56 and 2,132.40 is: 2,942.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262 : 3,121.56 = 2,132.40 : x
  2. Step 2: Convert to fraction form
    2,262/3,121.56 = 2,132.40/x
  3. Step 3: Cross multiply
    2,262x = 3,121.56 × 2,132.40
  4. Step 4: Simplify right side
    2,262x = 6,656,414.54
  5. Step 5: Solve for x
    x = 6,656,414.54/2,262
  6. Step 6: Final answer
    x = 2,942.71

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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.