Home / 2,276.28-3,141.12-1,281.60

Finding the Fourth Proportional to 2,276.28, 3,141.12 and 1,281.60

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Solution

The fourth proportional to 2,276.28, 3,141.12 and 1,281.60 is: 1,768.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.28 : 3,141.12 = 1,281.60 : x
  2. Step 2: Convert to fraction form
    2,276.28/3,141.12 = 1,281.60/x
  3. Step 3: Cross multiply
    2,276.28x = 3,141.12 × 1,281.60
  4. Step 4: Simplify right side
    2,276.28x = 4,025,659.39
  5. Step 5: Solve for x
    x = 4,025,659.39/2,276.28
  6. Step 6: Final answer
    x = 1,768.53

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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.