Home / 3,091.71-4,268.03-1,765.16

Finding the Fourth Proportional to 3,091.71, 4,268.03 and 1,765.16

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Solution

The fourth proportional to 3,091.71, 4,268.03 and 1,765.16 is: 2,436.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.71 : 4,268.03 = 1,765.16 : x
  2. Step 2: Convert to fraction form
    3,091.71/4,268.03 = 1,765.16/x
  3. Step 3: Cross multiply
    3,091.71x = 4,268.03 × 1,765.16
  4. Step 4: Simplify right side
    3,091.71x = 7,533,734.49
  5. Step 5: Solve for x
    x = 7,533,734.49/3,091.71
  6. Step 6: Final answer
    x = 2,436.76

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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.