Home / 3,990.05-5,506.92-3,044.06

Finding the Fourth Proportional to 3,990.05, 5,506.92 and 3,044.06

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Solution

The fourth proportional to 3,990.05, 5,506.92 and 3,044.06 is: 4,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.05 : 5,506.92 = 3,044.06 : x
  2. Step 2: Convert to fraction form
    3,990.05/5,506.92 = 3,044.06/x
  3. Step 3: Cross multiply
    3,990.05x = 5,506.92 × 3,044.06
  4. Step 4: Simplify right side
    3,990.05x = 16,763,367.36
  5. Step 5: Solve for x
    x = 16,763,367.36/3,990.05
  6. Step 6: Final answer
    x = 4,201.30

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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.