Home / 1,947.03-2,921.55-1,115.97

Finding the Fourth Proportional to 1,947.03, 2,921.55 and 1,115.97

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Solution

The fourth proportional to 1,947.03, 2,921.55 and 1,115.97 is: 1,674.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.03 : 2,921.55 = 1,115.97 : x
  2. Step 2: Convert to fraction form
    1,947.03/2,921.55 = 1,115.97/x
  3. Step 3: Cross multiply
    1,947.03x = 2,921.55 × 1,115.97
  4. Step 4: Simplify right side
    1,947.03x = 3,260,362.15
  5. Step 5: Solve for x
    x = 3,260,362.15/1,947.03
  6. Step 6: Final answer
    x = 1,674.53

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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.