Home / 3,937.61-5,433.89-2,169.18

Finding the Fourth Proportional to 3,937.61, 5,433.89 and 2,169.18

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Solution

The fourth proportional to 3,937.61, 5,433.89 and 2,169.18 is: 2,993.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.61 : 5,433.89 = 2,169.18 : x
  2. Step 2: Convert to fraction form
    3,937.61/5,433.89 = 2,169.18/x
  3. Step 3: Cross multiply
    3,937.61x = 5,433.89 × 2,169.18
  4. Step 4: Simplify right side
    3,937.61x = 11,787,074.66
  5. Step 5: Solve for x
    x = 11,787,074.66/3,937.61
  6. Step 6: Final answer
    x = 2,993.46

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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.