Home / 3,116.75-4,675.13-1,268.87

Finding the Fourth Proportional to 3,116.75, 4,675.13 and 1,268.87

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Solution

The fourth proportional to 3,116.75, 4,675.13 and 1,268.87 is: 1,903.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.75 : 4,675.13 = 1,268.87 : x
  2. Step 2: Convert to fraction form
    3,116.75/4,675.13 = 1,268.87/x
  3. Step 3: Cross multiply
    3,116.75x = 4,675.13 × 1,268.87
  4. Step 4: Simplify right side
    3,116.75x = 5,932,132.20
  5. Step 5: Solve for x
    x = 5,932,132.20/3,116.75
  6. Step 6: Final answer
    x = 1,903.31

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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.