Home / 1,966.28-2,947.92-1,273.64

Finding the Fourth Proportional to 1,966.28, 2,947.92 and 1,273.64

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Solution

The fourth proportional to 1,966.28, 2,947.92 and 1,273.64 is: 1,909.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.28 : 2,947.92 = 1,273.64 : x
  2. Step 2: Convert to fraction form
    1,966.28/2,947.92 = 1,273.64/x
  3. Step 3: Cross multiply
    1,966.28x = 2,947.92 × 1,273.64
  4. Step 4: Simplify right side
    1,966.28x = 3,754,588.83
  5. Step 5: Solve for x
    x = 3,754,588.83/1,966.28
  6. Step 6: Final answer
    x = 1,909.49

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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.