Home / 3,968.77-5,476.96-2,176.41

Finding the Fourth Proportional to 3,968.77, 5,476.96 and 2,176.41

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Solution

The fourth proportional to 3,968.77, 5,476.96 and 2,176.41 is: 3,003.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.77 : 5,476.96 = 2,176.41 : x
  2. Step 2: Convert to fraction form
    3,968.77/5,476.96 = 2,176.41/x
  3. Step 3: Cross multiply
    3,968.77x = 5,476.96 × 2,176.41
  4. Step 4: Simplify right side
    3,968.77x = 11,920,114.95
  5. Step 5: Solve for x
    x = 11,920,114.95/3,968.77
  6. Step 6: Final answer
    x = 3,003.48

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Half scale
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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.