Home / 2,220.11-3,330.16-2,084.78

Finding the Fourth Proportional to 2,220.11, 3,330.16 and 2,084.78

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Solution

The fourth proportional to 2,220.11, 3,330.16 and 2,084.78 is: 3,127.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.11 : 3,330.16 = 2,084.78 : x
  2. Step 2: Convert to fraction form
    2,220.11/3,330.16 = 2,084.78/x
  3. Step 3: Cross multiply
    2,220.11x = 3,330.16 × 2,084.78
  4. Step 4: Simplify right side
    2,220.11x = 6,942,654.08
  5. Step 5: Solve for x
    x = 6,942,654.08/2,220.11
  6. Step 6: Final answer
    x = 3,127.17

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Half scale
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Double scale
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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.