Home / 3,991.33-5,508.05-2,223.29

Finding the Fourth Proportional to 3,991.33, 5,508.05 and 2,223.29

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Solution

The fourth proportional to 3,991.33, 5,508.05 and 2,223.29 is: 3,068.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.33 : 5,508.05 = 2,223.29 : x
  2. Step 2: Convert to fraction form
    3,991.33/5,508.05 = 2,223.29/x
  3. Step 3: Cross multiply
    3,991.33x = 5,508.05 × 2,223.29
  4. Step 4: Simplify right side
    3,991.33x = 12,245,953.83
  5. Step 5: Solve for x
    x = 12,245,953.83/3,991.33
  6. Step 6: Final answer
    x = 3,068.14

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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.