Home / 2,220.50-3,330.75-834.16

Finding the Fourth Proportional to 2,220.50, 3,330.75 and 834.16

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Solution

The fourth proportional to 2,220.50, 3,330.75 and 834.16 is: 1,251.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.50 : 3,330.75 = 834.16 : x
  2. Step 2: Convert to fraction form
    2,220.50/3,330.75 = 834.16/x
  3. Step 3: Cross multiply
    2,220.50x = 3,330.75 × 834.16
  4. Step 4: Simplify right side
    2,220.50x = 2,778,361.77
  5. Step 5: Solve for x
    x = 2,778,361.77/2,220.50
  6. Step 6: Final answer
    x = 1,251.23

Related Problems

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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.