Home / 2,431.92-3,356.04-1,383.96

Finding the Fourth Proportional to 2,431.92, 3,356.04 and 1,383.96

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Solution

The fourth proportional to 2,431.92, 3,356.04 and 1,383.96 is: 1,909.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.92 : 3,356.04 = 1,383.96 : x
  2. Step 2: Convert to fraction form
    2,431.92/3,356.04 = 1,383.96/x
  3. Step 3: Cross multiply
    2,431.92x = 3,356.04 × 1,383.96
  4. Step 4: Simplify right side
    2,431.92x = 4,644,625.12
  5. Step 5: Solve for x
    x = 4,644,625.12/2,431.92
  6. Step 6: Final answer
    x = 1,909.86

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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.