Home / 3,977.09-5,488.10-2,208.55

Finding the Fourth Proportional to 3,977.09, 5,488.10 and 2,208.55

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Solution

The fourth proportional to 3,977.09, 5,488.10 and 2,208.55 is: 3,047.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.09 : 5,488.10 = 2,208.55 : x
  2. Step 2: Convert to fraction form
    3,977.09/5,488.10 = 2,208.55/x
  3. Step 3: Cross multiply
    3,977.09x = 5,488.10 × 2,208.55
  4. Step 4: Simplify right side
    3,977.09x = 12,120,743.26
  5. Step 5: Solve for x
    x = 12,120,743.26/3,977.09
  6. Step 6: Final answer
    x = 3,047.65

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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.