Home / 3,976.35-5,487.75-2,208.54

Finding the Fourth Proportional to 3,976.35, 5,487.75 and 2,208.54

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Solution

The fourth proportional to 3,976.35, 5,487.75 and 2,208.54 is: 3,048.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.35 : 5,487.75 = 2,208.54 : x
  2. Step 2: Convert to fraction form
    3,976.35/5,487.75 = 2,208.54/x
  3. Step 3: Cross multiply
    3,976.35x = 5,487.75 × 2,208.54
  4. Step 4: Simplify right side
    3,976.35x = 12,119,915.39
  5. Step 5: Solve for x
    x = 12,119,915.39/3,976.35
  6. Step 6: Final answer
    x = 3,048.00

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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.