Home / 3,976.64-5,487.18-2,208.26

Finding the Fourth Proportional to 3,976.64, 5,487.18 and 2,208.26

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Solution

The fourth proportional to 3,976.64, 5,487.18 and 2,208.26 is: 3,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.64 : 5,487.18 = 2,208.26 : x
  2. Step 2: Convert to fraction form
    3,976.64/5,487.18 = 2,208.26/x
  3. Step 3: Cross multiply
    3,976.64x = 5,487.18 × 2,208.26
  4. Step 4: Simplify right side
    3,976.64x = 12,117,120.11
  5. Step 5: Solve for x
    x = 12,117,120.11/3,976.64
  6. Step 6: Final answer
    x = 3,047.07

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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.