Home / 6,660.19-9,191.97-3,865.69

Finding the Fourth Proportional to 6,660.19, 9,191.97 and 3,865.69

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Solution

The fourth proportional to 6,660.19, 9,191.97 and 3,865.69 is: 5,335.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.19 : 9,191.97 = 3,865.69 : x
  2. Step 2: Convert to fraction form
    6,660.19/9,191.97 = 3,865.69/x
  3. Step 3: Cross multiply
    6,660.19x = 9,191.97 × 3,865.69
  4. Step 4: Simplify right side
    6,660.19x = 35,533,283.53
  5. Step 5: Solve for x
    x = 35,533,283.53/6,660.19
  6. Step 6: Final answer
    x = 5,335.18

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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.