Home / 3,937.82-5,433.98-2,169.08

Finding the Fourth Proportional to 3,937.82, 5,433.98 and 2,169.08

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Solution

The fourth proportional to 3,937.82, 5,433.98 and 2,169.08 is: 2,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.82 : 5,433.98 = 2,169.08 : x
  2. Step 2: Convert to fraction form
    3,937.82/5,433.98 = 2,169.08/x
  3. Step 3: Cross multiply
    3,937.82x = 5,433.98 × 2,169.08
  4. Step 4: Simplify right side
    3,937.82x = 11,786,737.34
  5. Step 5: Solve for x
    x = 11,786,737.34/3,937.82
  6. Step 6: Final answer
    x = 2,993.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.