Home / 2,731.12-4,096.32-1,853.92

Finding the Fourth Proportional to 2,731.12, 4,096.32 and 1,853.92

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Solution

The fourth proportional to 2,731.12, 4,096.32 and 1,853.92 is: 2,780.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.12 : 4,096.32 = 1,853.92 : x
  2. Step 2: Convert to fraction form
    2,731.12/4,096.32 = 1,853.92/x
  3. Step 3: Cross multiply
    2,731.12x = 4,096.32 × 1,853.92
  4. Step 4: Simplify right side
    2,731.12x = 7,594,249.57
  5. Step 5: Solve for x
    x = 7,594,249.57/2,731.12
  6. Step 6: Final answer
    x = 2,780.64

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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.