Home / 2,276.74-3,142.02-1,392.49

Finding the Fourth Proportional to 2,276.74, 3,142.02 and 1,392.49

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Solution

The fourth proportional to 2,276.74, 3,142.02 and 1,392.49 is: 1,921.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.74 : 3,142.02 = 1,392.49 : x
  2. Step 2: Convert to fraction form
    2,276.74/3,142.02 = 1,392.49/x
  3. Step 3: Cross multiply
    2,276.74x = 3,142.02 × 1,392.49
  4. Step 4: Simplify right side
    2,276.74x = 4,375,231.43
  5. Step 5: Solve for x
    x = 4,375,231.43/2,276.74
  6. Step 6: Final answer
    x = 1,921.71

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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.