Home / 3,658.12-5,045.86-2,165.48

Finding the Fourth Proportional to 3,658.12, 5,045.86 and 2,165.48

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Solution

The fourth proportional to 3,658.12, 5,045.86 and 2,165.48 is: 2,986.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.12 : 5,045.86 = 2,165.48 : x
  2. Step 2: Convert to fraction form
    3,658.12/5,045.86 = 2,165.48/x
  3. Step 3: Cross multiply
    3,658.12x = 5,045.86 × 2,165.48
  4. Step 4: Simplify right side
    3,658.12x = 10,926,708.91
  5. Step 5: Solve for x
    x = 10,926,708.91/3,658.12
  6. Step 6: Final answer
    x = 2,986.97

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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.