Home / 2,200.31-3,300.85-739.13

Finding the Fourth Proportional to 2,200.31, 3,300.85 and 739.13

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Solution

The fourth proportional to 2,200.31, 3,300.85 and 739.13 is: 1,108.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,200.31 : 3,300.85 = 739.13 : x
  2. Step 2: Convert to fraction form
    2,200.31/3,300.85 = 739.13/x
  3. Step 3: Cross multiply
    2,200.31x = 3,300.85 × 739.13
  4. Step 4: Simplify right side
    2,200.31x = 2,439,741.68
  5. Step 5: Solve for x
    x = 2,439,741.68/2,200.31
  6. Step 6: Final answer
    x = 1,108.82

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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.