Home / 3,187.66-4,781.31-1,955.26

Finding the Fourth Proportional to 3,187.66, 4,781.31 and 1,955.26

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Solution

The fourth proportional to 3,187.66, 4,781.31 and 1,955.26 is: 2,932.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.66 : 4,781.31 = 1,955.26 : x
  2. Step 2: Convert to fraction form
    3,187.66/4,781.31 = 1,955.26/x
  3. Step 3: Cross multiply
    3,187.66x = 4,781.31 × 1,955.26
  4. Step 4: Simplify right side
    3,187.66x = 9,348,704.19
  5. Step 5: Solve for x
    x = 9,348,704.19/3,187.66
  6. Step 6: Final answer
    x = 2,932.78

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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.