Home / 3,653.64-5,042.08-2,081.76

Finding the Fourth Proportional to 3,653.64, 5,042.08 and 2,081.76

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Solution

The fourth proportional to 3,653.64, 5,042.08 and 2,081.76 is: 2,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.64 : 5,042.08 = 2,081.76 : x
  2. Step 2: Convert to fraction form
    3,653.64/5,042.08 = 2,081.76/x
  3. Step 3: Cross multiply
    3,653.64x = 5,042.08 × 2,081.76
  4. Step 4: Simplify right side
    3,653.64x = 10,496,400.46
  5. Step 5: Solve for x
    x = 10,496,400.46/3,653.64
  6. Step 6: Final answer
    x = 2,872.86

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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.