Home / 1,963.32-2,708.82-1,217.04

Finding the Fourth Proportional to 1,963.32, 2,708.82 and 1,217.04

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Solution

The fourth proportional to 1,963.32, 2,708.82 and 1,217.04 is: 1,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963.32 : 2,708.82 = 1,217.04 : x
  2. Step 2: Convert to fraction form
    1,963.32/2,708.82 = 1,217.04/x
  3. Step 3: Cross multiply
    1,963.32x = 2,708.82 × 1,217.04
  4. Step 4: Simplify right side
    1,963.32x = 3,296,742.29
  5. Step 5: Solve for x
    x = 3,296,742.29/1,963.32
  6. Step 6: Final answer
    x = 1,679.17

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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.