Home / 3,937.50-5,433.66-2,169.09

Finding the Fourth Proportional to 3,937.50, 5,433.66 and 2,169.09

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Solution

The fourth proportional to 3,937.50, 5,433.66 and 2,169.09 is: 2,993.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.50 : 5,433.66 = 2,169.09 : x
  2. Step 2: Convert to fraction form
    3,937.50/5,433.66 = 2,169.09/x
  3. Step 3: Cross multiply
    3,937.50x = 5,433.66 × 2,169.09
  4. Step 4: Simplify right side
    3,937.50x = 11,786,097.57
  5. Step 5: Solve for x
    x = 11,786,097.57/3,937.50
  6. Step 6: Final answer
    x = 2,993.29

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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.