Home / 3,947.28-5,918.76-1,173.12

Finding the Fourth Proportional to 3,947.28, 5,918.76 and 1,173.12

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Solution

The fourth proportional to 3,947.28, 5,918.76 and 1,173.12 is: 1,759.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.28 : 5,918.76 = 1,173.12 : x
  2. Step 2: Convert to fraction form
    3,947.28/5,918.76 = 1,173.12/x
  3. Step 3: Cross multiply
    3,947.28x = 5,918.76 × 1,173.12
  4. Step 4: Simplify right side
    3,947.28x = 6,943,415.73
  5. Step 5: Solve for x
    x = 6,943,415.73/3,947.28
  6. Step 6: Final answer
    x = 1,759.04

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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.