Home / 2,711.14-3,738.82-2,312.95

Finding the Fourth Proportional to 2,711.14, 3,738.82 and 2,312.95

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Solution

The fourth proportional to 2,711.14, 3,738.82 and 2,312.95 is: 3,189.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.14 : 3,738.82 = 2,312.95 : x
  2. Step 2: Convert to fraction form
    2,711.14/3,738.82 = 2,312.95/x
  3. Step 3: Cross multiply
    2,711.14x = 3,738.82 × 2,312.95
  4. Step 4: Simplify right side
    2,711.14x = 8,647,703.72
  5. Step 5: Solve for x
    x = 8,647,703.72/2,711.14
  6. Step 6: Final answer
    x = 3,189.69

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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.