Home / 4,885.11-7,320.38-1,961.82

Finding the Fourth Proportional to 4,885.11, 7,320.38 and 1,961.82

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Solution

The fourth proportional to 4,885.11, 7,320.38 and 1,961.82 is: 2,939.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.11 : 7,320.38 = 1,961.82 : x
  2. Step 2: Convert to fraction form
    4,885.11/7,320.38 = 1,961.82/x
  3. Step 3: Cross multiply
    4,885.11x = 7,320.38 × 1,961.82
  4. Step 4: Simplify right side
    4,885.11x = 14,361,258.08
  5. Step 5: Solve for x
    x = 14,361,258.08/4,885.11
  6. Step 6: Final answer
    x = 2,939.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.