Home / 3,977.42-5,488.62-2,208.91

Finding the Fourth Proportional to 3,977.42, 5,488.62 and 2,208.91

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Solution

The fourth proportional to 3,977.42, 5,488.62 and 2,208.91 is: 3,048.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.42 : 5,488.62 = 2,208.91 : x
  2. Step 2: Convert to fraction form
    3,977.42/5,488.62 = 2,208.91/x
  3. Step 3: Cross multiply
    3,977.42x = 5,488.62 × 2,208.91
  4. Step 4: Simplify right side
    3,977.42x = 12,123,867.60
  5. Step 5: Solve for x
    x = 12,123,867.60/3,977.42
  6. Step 6: Final answer
    x = 3,048.17

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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.