Home / 3,947.30-5,920.91-1,136.19

Finding the Fourth Proportional to 3,947.30, 5,920.91 and 1,136.19

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Solution

The fourth proportional to 3,947.30, 5,920.91 and 1,136.19 is: 1,704.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.30 : 5,920.91 = 1,136.19 : x
  2. Step 2: Convert to fraction form
    3,947.30/5,920.91 = 1,136.19/x
  3. Step 3: Cross multiply
    3,947.30x = 5,920.91 × 1,136.19
  4. Step 4: Simplify right side
    3,947.30x = 6,727,305.91
  5. Step 5: Solve for x
    x = 6,727,305.91/3,947.30
  6. Step 6: Final answer
    x = 1,704.28

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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.