Home / 3,857.50-5,321.68-2,364.85

Finding the Fourth Proportional to 3,857.50, 5,321.68 and 2,364.85

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Solution

The fourth proportional to 3,857.50, 5,321.68 and 2,364.85 is: 3,262.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.50 : 5,321.68 = 2,364.85 : x
  2. Step 2: Convert to fraction form
    3,857.50/5,321.68 = 2,364.85/x
  3. Step 3: Cross multiply
    3,857.50x = 5,321.68 × 2,364.85
  4. Step 4: Simplify right side
    3,857.50x = 12,584,974.95
  5. Step 5: Solve for x
    x = 12,584,974.95/3,857.50
  6. Step 6: Final answer
    x = 3,262.47

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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.