Home / 3,947.62-5,920.41-1,173.64

Finding the Fourth Proportional to 3,947.62, 5,920.41 and 1,173.64

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Solution

The fourth proportional to 3,947.62, 5,920.41 and 1,173.64 is: 1,760.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.62 : 5,920.41 = 1,173.64 : x
  2. Step 2: Convert to fraction form
    3,947.62/5,920.41 = 1,173.64/x
  3. Step 3: Cross multiply
    3,947.62x = 5,920.41 × 1,173.64
  4. Step 4: Simplify right side
    3,947.62x = 6,948,429.99
  5. Step 5: Solve for x
    x = 6,948,429.99/3,947.62
  6. Step 6: Final answer
    x = 1,760.16

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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.