Home / 3,984.13-5,497.98-2,215.72

Finding the Fourth Proportional to 3,984.13, 5,497.98 and 2,215.72

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Solution

The fourth proportional to 3,984.13, 5,497.98 and 2,215.72 is: 3,057.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.13 : 5,497.98 = 2,215.72 : x
  2. Step 2: Convert to fraction form
    3,984.13/5,497.98 = 2,215.72/x
  3. Step 3: Cross multiply
    3,984.13x = 5,497.98 × 2,215.72
  4. Step 4: Simplify right side
    3,984.13x = 12,181,984.25
  5. Step 5: Solve for x
    x = 12,181,984.25/3,984.13
  6. Step 6: Final answer
    x = 3,057.63

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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.