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Finding the Fourth Proportional to 2,229.18, 3,344.54 and 842.92

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Solution

The fourth proportional to 2,229.18, 3,344.54 and 842.92 is: 1,264.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.18 : 3,344.54 = 842.92 : x
  2. Step 2: Convert to fraction form
    2,229.18/3,344.54 = 842.92/x
  3. Step 3: Cross multiply
    2,229.18x = 3,344.54 × 842.92
  4. Step 4: Simplify right side
    2,229.18x = 2,819,179.66
  5. Step 5: Solve for x
    x = 2,819,179.66/2,229.18
  6. Step 6: Final answer
    x = 1,264.67

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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.