Home / 3,977.24-5,488.31-2,208.70

Finding the Fourth Proportional to 3,977.24, 5,488.31 and 2,208.70

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Solution

The fourth proportional to 3,977.24, 5,488.31 and 2,208.70 is: 3,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.24 : 5,488.31 = 2,208.70 : x
  2. Step 2: Convert to fraction form
    3,977.24/5,488.31 = 2,208.70/x
  3. Step 3: Cross multiply
    3,977.24x = 5,488.31 × 2,208.70
  4. Step 4: Simplify right side
    3,977.24x = 12,122,030.30
  5. Step 5: Solve for x
    x = 12,122,030.30/3,977.24
  6. Step 6: Final answer
    x = 3,047.85

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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.