Home / 3,976.86-5,487.84-2,208.24

Finding the Fourth Proportional to 3,976.86, 5,487.84 and 2,208.24

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Solution

The fourth proportional to 3,976.86, 5,487.84 and 2,208.24 is: 3,047.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.86 : 5,487.84 = 2,208.24 : x
  2. Step 2: Convert to fraction form
    3,976.86/5,487.84 = 2,208.24/x
  3. Step 3: Cross multiply
    3,976.86x = 5,487.84 × 2,208.24
  4. Step 4: Simplify right side
    3,976.86x = 12,118,467.80
  5. Step 5: Solve for x
    x = 12,118,467.80/3,976.86
  6. Step 6: Final answer
    x = 3,047.25

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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.