Home / 4,220.90-6,331.35-3,443.30

Finding the Fourth Proportional to 4,220.90, 6,331.35 and 3,443.30

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Solution

The fourth proportional to 4,220.90, 6,331.35 and 3,443.30 is: 5,164.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.90 : 6,331.35 = 3,443.30 : x
  2. Step 2: Convert to fraction form
    4,220.90/6,331.35 = 3,443.30/x
  3. Step 3: Cross multiply
    4,220.90x = 6,331.35 × 3,443.30
  4. Step 4: Simplify right side
    4,220.90x = 21,800,737.46
  5. Step 5: Solve for x
    x = 21,800,737.46/4,220.90
  6. Step 6: Final answer
    x = 5,164.95

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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.