Home / 2,560.38-3,838.65-2,213.58

Finding the Fourth Proportional to 2,560.38, 3,838.65 and 2,213.58

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Solution

The fourth proportional to 2,560.38, 3,838.65 and 2,213.58 is: 3,318.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.38 : 3,838.65 = 2,213.58 : x
  2. Step 2: Convert to fraction form
    2,560.38/3,838.65 = 2,213.58/x
  3. Step 3: Cross multiply
    2,560.38x = 3,838.65 × 2,213.58
  4. Step 4: Simplify right side
    2,560.38x = 8,497,158.87
  5. Step 5: Solve for x
    x = 8,497,158.87/2,560.38
  6. Step 6: Final answer
    x = 3,318.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.