Home / 2,220.57-3,331.10-1,360.41

Finding the Fourth Proportional to 2,220.57, 3,331.10 and 1,360.41

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Solution

The fourth proportional to 2,220.57, 3,331.10 and 1,360.41 is: 2,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.57 : 3,331.10 = 1,360.41 : x
  2. Step 2: Convert to fraction form
    2,220.57/3,331.10 = 1,360.41/x
  3. Step 3: Cross multiply
    2,220.57x = 3,331.10 × 1,360.41
  4. Step 4: Simplify right side
    2,220.57x = 4,531,654.95
  5. Step 5: Solve for x
    x = 4,531,654.95/2,220.57
  6. Step 6: Final answer
    x = 2,040.76

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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.