Home / 2,429.12-3,352.48-1,381.44

Finding the Fourth Proportional to 2,429.12, 3,352.48 and 1,381.44

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Solution

The fourth proportional to 2,429.12, 3,352.48 and 1,381.44 is: 1,906.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,429.12 : 3,352.48 = 1,381.44 : x
  2. Step 2: Convert to fraction form
    2,429.12/3,352.48 = 1,381.44/x
  3. Step 3: Cross multiply
    2,429.12x = 3,352.48 × 1,381.44
  4. Step 4: Simplify right side
    2,429.12x = 4,631,249.97
  5. Step 5: Solve for x
    x = 4,631,249.97/2,429.12
  6. Step 6: Final answer
    x = 1,906.55

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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.