Home / 1,748.26-2,616.90-1,278.73

Finding the Fourth Proportional to 1,748.26, 2,616.90 and 1,278.73

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Solution

The fourth proportional to 1,748.26, 2,616.90 and 1,278.73 is: 1,914.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.26 : 2,616.90 = 1,278.73 : x
  2. Step 2: Convert to fraction form
    1,748.26/2,616.90 = 1,278.73/x
  3. Step 3: Cross multiply
    1,748.26x = 2,616.90 × 1,278.73
  4. Step 4: Simplify right side
    1,748.26x = 3,346,308.54
  5. Step 5: Solve for x
    x = 3,346,308.54/1,748.26
  6. Step 6: Final answer
    x = 1,914.08

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1.5x scale

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.