Home / 2,354.35-3,249.20-1,306.75

Finding the Fourth Proportional to 2,354.35, 3,249.20 and 1,306.75

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Solution

The fourth proportional to 2,354.35, 3,249.20 and 1,306.75 is: 1,803.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.35 : 3,249.20 = 1,306.75 : x
  2. Step 2: Convert to fraction form
    2,354.35/3,249.20 = 1,306.75/x
  3. Step 3: Cross multiply
    2,354.35x = 3,249.20 × 1,306.75
  4. Step 4: Simplify right side
    2,354.35x = 4,245,885.57
  5. Step 5: Solve for x
    x = 4,245,885.57/2,354.35
  6. Step 6: Final answer
    x = 1,803.42

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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.