Home / 2,961.88-4,442.79-1,087.85

Finding the Fourth Proportional to 2,961.88, 4,442.79 and 1,087.85

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Solution

The fourth proportional to 2,961.88, 4,442.79 and 1,087.85 is: 1,631.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.88 : 4,442.79 = 1,087.85 : x
  2. Step 2: Convert to fraction form
    2,961.88/4,442.79 = 1,087.85/x
  3. Step 3: Cross multiply
    2,961.88x = 4,442.79 × 1,087.85
  4. Step 4: Simplify right side
    2,961.88x = 4,833,089.10
  5. Step 5: Solve for x
    x = 4,833,089.10/2,961.88
  6. Step 6: Final answer
    x = 1,631.76

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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.