Home / 3,976.02-5,487.08-2,207.79

Finding the Fourth Proportional to 3,976.02, 5,487.08 and 2,207.79

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Solution

The fourth proportional to 3,976.02, 5,487.08 and 2,207.79 is: 3,046.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.02 : 5,487.08 = 2,207.79 : x
  2. Step 2: Convert to fraction form
    3,976.02/5,487.08 = 2,207.79/x
  3. Step 3: Cross multiply
    3,976.02x = 5,487.08 × 2,207.79
  4. Step 4: Simplify right side
    3,976.02x = 12,114,309.31
  5. Step 5: Solve for x
    x = 12,114,309.31/3,976.02
  6. Step 6: Final answer
    x = 3,046.84

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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.