Home / 6,643.05-9,167.28-3,658.91

Finding the Fourth Proportional to 6,643.05, 9,167.28 and 3,658.91

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Solution

The fourth proportional to 6,643.05, 9,167.28 and 3,658.91 is: 5,049.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.05 : 9,167.28 = 3,658.91 : x
  2. Step 2: Convert to fraction form
    6,643.05/9,167.28 = 3,658.91/x
  3. Step 3: Cross multiply
    6,643.05x = 9,167.28 × 3,658.91
  4. Step 4: Simplify right side
    6,643.05x = 33,542,270.26
  5. Step 5: Solve for x
    x = 33,542,270.26/6,643.05
  6. Step 6: Final answer
    x = 5,049.22

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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.