Home / 3,977.46-5,488.83-2,209.03

Finding the Fourth Proportional to 3,977.46, 5,488.83 and 2,209.03

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Solution

The fourth proportional to 3,977.46, 5,488.83 and 2,209.03 is: 3,048.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.46 : 5,488.83 = 2,209.03 : x
  2. Step 2: Convert to fraction form
    3,977.46/5,488.83 = 2,209.03/x
  3. Step 3: Cross multiply
    3,977.46x = 5,488.83 × 2,209.03
  4. Step 4: Simplify right side
    3,977.46x = 12,124,990.13
  5. Step 5: Solve for x
    x = 12,124,990.13/3,977.46
  6. Step 6: Final answer
    x = 3,048.43

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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.