Home / 2,229.48-3,344.76-769.77

Finding the Fourth Proportional to 2,229.48, 3,344.76 and 769.77

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Solution

The fourth proportional to 2,229.48, 3,344.76 and 769.77 is: 1,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.48 : 3,344.76 = 769.77 : x
  2. Step 2: Convert to fraction form
    2,229.48/3,344.76 = 769.77/x
  3. Step 3: Cross multiply
    2,229.48x = 3,344.76 × 769.77
  4. Step 4: Simplify right side
    2,229.48x = 2,574,695.91
  5. Step 5: Solve for x
    x = 2,574,695.91/2,229.48
  6. Step 6: Final answer
    x = 1,154.84

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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.