Home / 2,220.88-3,331.56-739.52

Finding the Fourth Proportional to 2,220.88, 3,331.56 and 739.52

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Solution

The fourth proportional to 2,220.88, 3,331.56 and 739.52 is: 1,109.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.88 : 3,331.56 = 739.52 : x
  2. Step 2: Convert to fraction form
    2,220.88/3,331.56 = 739.52/x
  3. Step 3: Cross multiply
    2,220.88x = 3,331.56 × 739.52
  4. Step 4: Simplify right side
    2,220.88x = 2,463,755.25
  5. Step 5: Solve for x
    x = 2,463,755.25/2,220.88
  6. Step 6: Final answer
    x = 1,109.36

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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.