Home / 3,849.75-5,314.82-2,951.79

Finding the Fourth Proportional to 3,849.75, 5,314.82 and 2,951.79

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Solution

The fourth proportional to 3,849.75, 5,314.82 and 2,951.79 is: 4,075.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.75 : 5,314.82 = 2,951.79 : x
  2. Step 2: Convert to fraction form
    3,849.75/5,314.82 = 2,951.79/x
  3. Step 3: Cross multiply
    3,849.75x = 5,314.82 × 2,951.79
  4. Step 4: Simplify right side
    3,849.75x = 15,688,217.77
  5. Step 5: Solve for x
    x = 15,688,217.77/3,849.75
  6. Step 6: Final answer
    x = 4,075.13

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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.