Home / 6,660.87-9,188.96-3,864.75

Finding the Fourth Proportional to 6,660.87, 9,188.96 and 3,864.75

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Solution

The fourth proportional to 6,660.87, 9,188.96 and 3,864.75 is: 5,331.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.87 : 9,188.96 = 3,864.75 : x
  2. Step 2: Convert to fraction form
    6,660.87/9,188.96 = 3,864.75/x
  3. Step 3: Cross multiply
    6,660.87x = 9,188.96 × 3,864.75
  4. Step 4: Simplify right side
    6,660.87x = 35,513,013.84
  5. Step 5: Solve for x
    x = 35,513,013.84/6,660.87
  6. Step 6: Final answer
    x = 5,331.59

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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.