Home / 1,947.34-2,687.07-1,249.66

Finding the Fourth Proportional to 1,947.34, 2,687.07 and 1,249.66

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Solution

The fourth proportional to 1,947.34, 2,687.07 and 1,249.66 is: 1,724.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.34 : 2,687.07 = 1,249.66 : x
  2. Step 2: Convert to fraction form
    1,947.34/2,687.07 = 1,249.66/x
  3. Step 3: Cross multiply
    1,947.34x = 2,687.07 × 1,249.66
  4. Step 4: Simplify right side
    1,947.34x = 3,357,923.90
  5. Step 5: Solve for x
    x = 3,357,923.90/1,947.34
  6. Step 6: Final answer
    x = 1,724.36

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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.