Home / 3,658.71-5,049.09-2,166.08

Finding the Fourth Proportional to 3,658.71, 5,049.09 and 2,166.08

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Solution

The fourth proportional to 3,658.71, 5,049.09 and 2,166.08 is: 2,989.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.71 : 5,049.09 = 2,166.08 : x
  2. Step 2: Convert to fraction form
    3,658.71/5,049.09 = 2,166.08/x
  3. Step 3: Cross multiply
    3,658.71x = 5,049.09 × 2,166.08
  4. Step 4: Simplify right side
    3,658.71x = 10,936,720.24
  5. Step 5: Solve for x
    x = 10,936,720.24/3,658.71
  6. Step 6: Final answer
    x = 2,989.23

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1.5x scale

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.