Home / 1,747.20-2,407.68-1,634.88

Finding the Fourth Proportional to 1,747.20, 2,407.68 and 1,634.88

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Solution

The fourth proportional to 1,747.20, 2,407.68 and 1,634.88 is: 2,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.20 : 2,407.68 = 1,634.88 : x
  2. Step 2: Convert to fraction form
    1,747.20/2,407.68 = 1,634.88/x
  3. Step 3: Cross multiply
    1,747.20x = 2,407.68 × 1,634.88
  4. Step 4: Simplify right side
    1,747.20x = 3,936,267.88
  5. Step 5: Solve for x
    x = 3,936,267.88/1,747.20
  6. Step 6: Final answer
    x = 2,252.90

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1.5x scale

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.