Home / 3,977.29-5,487.91-2,208.66

Finding the Fourth Proportional to 3,977.29, 5,487.91 and 2,208.66

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Solution

The fourth proportional to 3,977.29, 5,487.91 and 2,208.66 is: 3,047.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.29 : 5,487.91 = 2,208.66 : x
  2. Step 2: Convert to fraction form
    3,977.29/5,487.91 = 2,208.66/x
  3. Step 3: Cross multiply
    3,977.29x = 5,487.91 × 2,208.66
  4. Step 4: Simplify right side
    3,977.29x = 12,120,927.30
  5. Step 5: Solve for x
    x = 12,120,927.30/3,977.29
  6. Step 6: Final answer
    x = 3,047.53

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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.