Home / 3,937.72-5,433.88-2,169.44

Finding the Fourth Proportional to 3,937.72, 5,433.88 and 2,169.44

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Solution

The fourth proportional to 3,937.72, 5,433.88 and 2,169.44 is: 2,993.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.72 : 5,433.88 = 2,169.44 : x
  2. Step 2: Convert to fraction form
    3,937.72/5,433.88 = 2,169.44/x
  3. Step 3: Cross multiply
    3,937.72x = 5,433.88 × 2,169.44
  4. Step 4: Simplify right side
    3,937.72x = 11,788,476.63
  5. Step 5: Solve for x
    x = 11,788,476.63/3,937.72
  6. Step 6: Final answer
    x = 2,993.73

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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.