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Finding the Fourth Proportional to 6,869.91, 9,480.48 and 3,726.09

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Solution

The fourth proportional to 6,869.91, 9,480.48 and 3,726.09 is: 5,142.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.91 : 9,480.48 = 3,726.09 : x
  2. Step 2: Convert to fraction form
    6,869.91/9,480.48 = 3,726.09/x
  3. Step 3: Cross multiply
    6,869.91x = 9,480.48 × 3,726.09
  4. Step 4: Simplify right side
    6,869.91x = 35,325,121.72
  5. Step 5: Solve for x
    x = 35,325,121.72/6,869.91
  6. Step 6: Final answer
    x = 5,142.01

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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.