Home / 2,220.46-3,331.02-739.20

Finding the Fourth Proportional to 2,220.46, 3,331.02 and 739.20

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Solution

The fourth proportional to 2,220.46, 3,331.02 and 739.20 is: 1,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.46 : 3,331.02 = 739.20 : x
  2. Step 2: Convert to fraction form
    2,220.46/3,331.02 = 739.20/x
  3. Step 3: Cross multiply
    2,220.46x = 3,331.02 × 739.20
  4. Step 4: Simplify right side
    2,220.46x = 2,462,295.88
  5. Step 5: Solve for x
    x = 2,462,295.88/2,220.46
  6. Step 6: Final answer
    x = 1,108.91

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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.