Home / 1,749.28-2,414.38-1,190.68

Finding the Fourth Proportional to 1,749.28, 2,414.38 and 1,190.68

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Solution

The fourth proportional to 1,749.28, 2,414.38 and 1,190.68 is: 1,643.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.28 : 2,414.38 = 1,190.68 : x
  2. Step 2: Convert to fraction form
    1,749.28/2,414.38 = 1,190.68/x
  3. Step 3: Cross multiply
    1,749.28x = 2,414.38 × 1,190.68
  4. Step 4: Simplify right side
    1,749.28x = 2,874,753.98
  5. Step 5: Solve for x
    x = 2,874,753.98/1,749.28
  6. Step 6: Final answer
    x = 1,643.39

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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.