Home / 2,312.97-3,471.28-1,079.75

Finding the Fourth Proportional to 2,312.97, 3,471.28 and 1,079.75

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Solution

The fourth proportional to 2,312.97, 3,471.28 and 1,079.75 is: 1,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.97 : 3,471.28 = 1,079.75 : x
  2. Step 2: Convert to fraction form
    2,312.97/3,471.28 = 1,079.75/x
  3. Step 3: Cross multiply
    2,312.97x = 3,471.28 × 1,079.75
  4. Step 4: Simplify right side
    2,312.97x = 3,748,114.58
  5. Step 5: Solve for x
    x = 3,748,114.58/2,312.97
  6. Step 6: Final answer
    x = 1,620.48

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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.