Home / 3,976.59-5,487.75-2,208.16

Finding the Fourth Proportional to 3,976.59, 5,487.75 and 2,208.16

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Solution

The fourth proportional to 3,976.59, 5,487.75 and 2,208.16 is: 3,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.59 : 5,487.75 = 2,208.16 : x
  2. Step 2: Convert to fraction form
    3,976.59/5,487.75 = 2,208.16/x
  3. Step 3: Cross multiply
    3,976.59x = 5,487.75 × 2,208.16
  4. Step 4: Simplify right side
    3,976.59x = 12,117,836.90
  5. Step 5: Solve for x
    x = 12,117,836.90/3,976.59
  6. Step 6: Final answer
    x = 3,047.29

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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.