Home / 3,658.11-5,042.28-2,860.02

Finding the Fourth Proportional to 3,658.11, 5,042.28 and 2,860.02

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Solution

The fourth proportional to 3,658.11, 5,042.28 and 2,860.02 is: 3,942.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.11 : 5,042.28 = 2,860.02 : x
  2. Step 2: Convert to fraction form
    3,658.11/5,042.28 = 2,860.02/x
  3. Step 3: Cross multiply
    3,658.11x = 5,042.28 × 2,860.02
  4. Step 4: Simplify right side
    3,658.11x = 14,421,021.65
  5. Step 5: Solve for x
    x = 14,421,021.65/3,658.11
  6. Step 6: Final answer
    x = 3,942.21

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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.