Home / 2,713.22-4,067.40-981.44

Finding the Fourth Proportional to 2,713.22, 4,067.40 and 981.44

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Solution

The fourth proportional to 2,713.22, 4,067.40 and 981.44 is: 1,471.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,713.22 : 4,067.40 = 981.44 : x
  2. Step 2: Convert to fraction form
    2,713.22/4,067.40 = 981.44/x
  3. Step 3: Cross multiply
    2,713.22x = 4,067.40 × 981.44
  4. Step 4: Simplify right side
    2,713.22x = 3,991,909.06
  5. Step 5: Solve for x
    x = 3,991,909.06/2,713.22
  6. Step 6: Final answer
    x = 1,471.28

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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.