Home / 6,660.36-9,190.98-3,825.78

Finding the Fourth Proportional to 6,660.36, 9,190.98 and 3,825.78

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Solution

The fourth proportional to 6,660.36, 9,190.98 and 3,825.78 is: 5,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.36 : 9,190.98 = 3,825.78 : x
  2. Step 2: Convert to fraction form
    6,660.36/9,190.98 = 3,825.78/x
  3. Step 3: Cross multiply
    6,660.36x = 9,190.98 × 3,825.78
  4. Step 4: Simplify right side
    6,660.36x = 35,162,667.46
  5. Step 5: Solve for x
    x = 35,162,667.46/6,660.36
  6. Step 6: Final answer
    x = 5,279.39

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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.