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Finding the Fourth Proportional to 6,661.35, 9,191.61 and 3,828.17

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Solution

The fourth proportional to 6,661.35, 9,191.61 and 3,828.17 is: 5,282.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.35 : 9,191.61 = 3,828.17 : x
  2. Step 2: Convert to fraction form
    6,661.35/9,191.61 = 3,828.17/x
  3. Step 3: Cross multiply
    6,661.35x = 9,191.61 × 3,828.17
  4. Step 4: Simplify right side
    6,661.35x = 35,187,026.51
  5. Step 5: Solve for x
    x = 35,187,026.51/6,661.35
  6. Step 6: Final answer
    x = 5,282.27

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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.