Home / 3,761.19-5,188.80-2,268.28

Finding the Fourth Proportional to 3,761.19, 5,188.80 and 2,268.28

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Solution

The fourth proportional to 3,761.19, 5,188.80 and 2,268.28 is: 3,129.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.19 : 5,188.80 = 2,268.28 : x
  2. Step 2: Convert to fraction form
    3,761.19/5,188.80 = 2,268.28/x
  3. Step 3: Cross multiply
    3,761.19x = 5,188.80 × 2,268.28
  4. Step 4: Simplify right side
    3,761.19x = 11,769,646.80
  5. Step 5: Solve for x
    x = 11,769,646.80/3,761.19
  6. Step 6: Final answer
    x = 3,129.23

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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.