Home / 2,961.24-4,442.88-1,318.92

Finding the Fourth Proportional to 2,961.24, 4,442.88 and 1,318.92

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Solution

The fourth proportional to 2,961.24, 4,442.88 and 1,318.92 is: 1,978.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.24 : 4,442.88 = 1,318.92 : x
  2. Step 2: Convert to fraction form
    2,961.24/4,442.88 = 1,318.92/x
  3. Step 3: Cross multiply
    2,961.24x = 4,442.88 × 1,318.92
  4. Step 4: Simplify right side
    2,961.24x = 5,859,803.29
  5. Step 5: Solve for x
    x = 5,859,803.29/2,961.24
  6. Step 6: Final answer
    x = 1,978.83

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1.5x scale

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.