Home / 2,276.85-3,141.86-1,281.92

Finding the Fourth Proportional to 2,276.85, 3,141.86 and 1,281.92

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Solution

The fourth proportional to 2,276.85, 3,141.86 and 1,281.92 is: 1,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.85 : 3,141.86 = 1,281.92 : x
  2. Step 2: Convert to fraction form
    2,276.85/3,141.86 = 1,281.92/x
  3. Step 3: Cross multiply
    2,276.85x = 3,141.86 × 1,281.92
  4. Step 4: Simplify right side
    2,276.85x = 4,027,591.05
  5. Step 5: Solve for x
    x = 4,027,591.05/2,276.85
  6. Step 6: Final answer
    x = 1,768.93

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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.