Home / 3,943.92-5,913.82-1,170.21

Finding the Fourth Proportional to 3,943.92, 5,913.82 and 1,170.21

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Solution

The fourth proportional to 3,943.92, 5,913.82 and 1,170.21 is: 1,754.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.92 : 5,913.82 = 1,170.21 : x
  2. Step 2: Convert to fraction form
    3,943.92/5,913.82 = 1,170.21/x
  3. Step 3: Cross multiply
    3,943.92x = 5,913.82 × 1,170.21
  4. Step 4: Simplify right side
    3,943.92x = 6,920,434.94
  5. Step 5: Solve for x
    x = 6,920,434.94/3,943.92
  6. Step 6: Final answer
    x = 1,754.71

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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.