Home / 2,961.36-4,442.76-1,318.44

Finding the Fourth Proportional to 2,961.36, 4,442.76 and 1,318.44

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Solution

The fourth proportional to 2,961.36, 4,442.76 and 1,318.44 is: 1,977.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.36 : 4,442.76 = 1,318.44 : x
  2. Step 2: Convert to fraction form
    2,961.36/4,442.76 = 1,318.44/x
  3. Step 3: Cross multiply
    2,961.36x = 4,442.76 × 1,318.44
  4. Step 4: Simplify right side
    2,961.36x = 5,857,512.49
  5. Step 5: Solve for x
    x = 5,857,512.49/2,961.36
  6. Step 6: Final answer
    x = 1,977.98

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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.