Home / 3,761.16-5,189.80-2,188.92

Finding the Fourth Proportional to 3,761.16, 5,189.80 and 2,188.92

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Solution

The fourth proportional to 3,761.16, 5,189.80 and 2,188.92 is: 3,020.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.16 : 5,189.80 = 2,188.92 : x
  2. Step 2: Convert to fraction form
    3,761.16/5,189.80 = 2,188.92/x
  3. Step 3: Cross multiply
    3,761.16x = 5,189.80 × 2,188.92
  4. Step 4: Simplify right side
    3,761.16x = 11,360,057.02
  5. Step 5: Solve for x
    x = 11,360,057.02/3,761.16
  6. Step 6: Final answer
    x = 3,020.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.