Home / 2,872.32-4,310.55-1,945.58

Finding the Fourth Proportional to 2,872.32, 4,310.55 and 1,945.58

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Solution

The fourth proportional to 2,872.32, 4,310.55 and 1,945.58 is: 2,919.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.32 : 4,310.55 = 1,945.58 : x
  2. Step 2: Convert to fraction form
    2,872.32/4,310.55 = 1,945.58/x
  3. Step 3: Cross multiply
    2,872.32x = 4,310.55 × 1,945.58
  4. Step 4: Simplify right side
    2,872.32x = 8,386,519.87
  5. Step 5: Solve for x
    x = 8,386,519.87/2,872.32
  6. Step 6: Final answer
    x = 2,919.77

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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.