Home / 2,220.20-3,330.84-660.19

Finding the Fourth Proportional to 2,220.20, 3,330.84 and 660.19

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Solution

The fourth proportional to 2,220.20, 3,330.84 and 660.19 is: 990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.20 : 3,330.84 = 660.19 : x
  2. Step 2: Convert to fraction form
    2,220.20/3,330.84 = 660.19/x
  3. Step 3: Cross multiply
    2,220.20x = 3,330.84 × 660.19
  4. Step 4: Simplify right side
    2,220.20x = 2,198,997.02
  5. Step 5: Solve for x
    x = 2,198,997.02/2,220.20
  6. Step 6: Final answer
    x = 990.45

Related Problems

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Similar ratio
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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.