Home / 3,984.45-5,498.98-2,305.83

Finding the Fourth Proportional to 3,984.45, 5,498.98 and 2,305.83

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Solution

The fourth proportional to 3,984.45, 5,498.98 and 2,305.83 is: 3,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.45 : 5,498.98 = 2,305.83 : x
  2. Step 2: Convert to fraction form
    3,984.45/5,498.98 = 2,305.83/x
  3. Step 3: Cross multiply
    3,984.45x = 5,498.98 × 2,305.83
  4. Step 4: Simplify right side
    3,984.45x = 12,679,713.05
  5. Step 5: Solve for x
    x = 12,679,713.05/3,984.45
  6. Step 6: Final answer
    x = 3,182.30

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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.