Home / 2,276.22-3,141.20-1,281.50

Finding the Fourth Proportional to 2,276.22, 3,141.20 and 1,281.50

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Solution

The fourth proportional to 2,276.22, 3,141.20 and 1,281.50 is: 1,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.22 : 3,141.20 = 1,281.50 : x
  2. Step 2: Convert to fraction form
    2,276.22/3,141.20 = 1,281.50/x
  3. Step 3: Cross multiply
    2,276.22x = 3,141.20 × 1,281.50
  4. Step 4: Simplify right side
    2,276.22x = 4,025,447.80
  5. Step 5: Solve for x
    x = 4,025,447.80/2,276.22
  6. Step 6: Final answer
    x = 1,768.48

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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.