Home / 6,669.72-9,204.09-3,685.49

Finding the Fourth Proportional to 6,669.72, 9,204.09 and 3,685.49

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Solution

The fourth proportional to 6,669.72, 9,204.09 and 3,685.49 is: 5,085.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,669.72 : 9,204.09 = 3,685.49 : x
  2. Step 2: Convert to fraction form
    6,669.72/9,204.09 = 3,685.49/x
  3. Step 3: Cross multiply
    6,669.72x = 9,204.09 × 3,685.49
  4. Step 4: Simplify right side
    6,669.72x = 33,921,540.22
  5. Step 5: Solve for x
    x = 33,921,540.22/6,669.72
  6. Step 6: Final answer
    x = 5,085.90

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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.