Home / 1,941.28-2,679.12-1,630.24

Finding the Fourth Proportional to 1,941.28, 2,679.12 and 1,630.24

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Solution

The fourth proportional to 1,941.28, 2,679.12 and 1,630.24 is: 2,249.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.28 : 2,679.12 = 1,630.24 : x
  2. Step 2: Convert to fraction form
    1,941.28/2,679.12 = 1,630.24/x
  3. Step 3: Cross multiply
    1,941.28x = 2,679.12 × 1,630.24
  4. Step 4: Simplify right side
    1,941.28x = 4,367,608.59
  5. Step 5: Solve for x
    x = 4,367,608.59/1,941.28
  6. Step 6: Final answer
    x = 2,249.86

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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.