Home / 3,977.19-5,488.16-2,208.69

Finding the Fourth Proportional to 3,977.19, 5,488.16 and 2,208.69

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Solution

The fourth proportional to 3,977.19, 5,488.16 and 2,208.69 is: 3,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.19 : 5,488.16 = 2,208.69 : x
  2. Step 2: Convert to fraction form
    3,977.19/5,488.16 = 2,208.69/x
  3. Step 3: Cross multiply
    3,977.19x = 5,488.16 × 2,208.69
  4. Step 4: Simplify right side
    3,977.19x = 12,121,633.07
  5. Step 5: Solve for x
    x = 12,121,633.07/3,977.19
  6. Step 6: Final answer
    x = 3,047.79

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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.