Home / 2,262.67-3,122.18-1,318.78

Finding the Fourth Proportional to 2,262.67, 3,122.18 and 1,318.78

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Solution

The fourth proportional to 2,262.67, 3,122.18 and 1,318.78 is: 1,819.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.67 : 3,122.18 = 1,318.78 : x
  2. Step 2: Convert to fraction form
    2,262.67/3,122.18 = 1,318.78/x
  3. Step 3: Cross multiply
    2,262.67x = 3,122.18 × 1,318.78
  4. Step 4: Simplify right side
    2,262.67x = 4,117,470.79
  5. Step 5: Solve for x
    x = 4,117,470.79/2,262.67
  6. Step 6: Final answer
    x = 1,819.74

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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.