Home / 6,643.18-9,167.64-3,659.12

Finding the Fourth Proportional to 6,643.18, 9,167.64 and 3,659.12

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Solution

The fourth proportional to 6,643.18, 9,167.64 and 3,659.12 is: 5,049.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.18 : 9,167.64 = 3,659.12 : x
  2. Step 2: Convert to fraction form
    6,643.18/9,167.64 = 3,659.12/x
  3. Step 3: Cross multiply
    6,643.18x = 9,167.64 × 3,659.12
  4. Step 4: Simplify right side
    6,643.18x = 33,545,449.04
  5. Step 5: Solve for x
    x = 33,545,449.04/6,643.18
  6. Step 6: Final answer
    x = 5,049.61

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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.