Home / 2,220.30-3,329.85-660.24

Finding the Fourth Proportional to 2,220.30, 3,329.85 and 660.24

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Solution

The fourth proportional to 2,220.30, 3,329.85 and 660.24 is: 990.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.30 : 3,329.85 = 660.24 : x
  2. Step 2: Convert to fraction form
    2,220.30/3,329.85 = 660.24/x
  3. Step 3: Cross multiply
    2,220.30x = 3,329.85 × 660.24
  4. Step 4: Simplify right side
    2,220.30x = 2,198,500.16
  5. Step 5: Solve for x
    x = 2,198,500.16/2,220.30
  6. Step 6: Final answer
    x = 990.18

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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.