Home / 2,741.40-4,112.42-1,425.76

Finding the Fourth Proportional to 2,741.40, 4,112.42 and 1,425.76

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Solution

The fourth proportional to 2,741.40, 4,112.42 and 1,425.76 is: 2,138.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,741.40 : 4,112.42 = 1,425.76 : x
  2. Step 2: Convert to fraction form
    2,741.40/4,112.42 = 1,425.76/x
  3. Step 3: Cross multiply
    2,741.40x = 4,112.42 × 1,425.76
  4. Step 4: Simplify right side
    2,741.40x = 5,863,306.53
  5. Step 5: Solve for x
    x = 5,863,306.53/2,741.40
  6. Step 6: Final answer
    x = 2,138.80

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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.