Home / 3,984.42-5,498.67-2,305.90

Finding the Fourth Proportional to 3,984.42, 5,498.67 and 2,305.90

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Solution

The fourth proportional to 3,984.42, 5,498.67 and 2,305.90 is: 3,182.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.42 : 5,498.67 = 2,305.90 : x
  2. Step 2: Convert to fraction form
    3,984.42/5,498.67 = 2,305.90/x
  3. Step 3: Cross multiply
    3,984.42x = 5,498.67 × 2,305.90
  4. Step 4: Simplify right side
    3,984.42x = 12,679,383.15
  5. Step 5: Solve for x
    x = 12,679,383.15/3,984.42
  6. Step 6: Final answer
    x = 3,182.24

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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.