Home / 6,660.42-9,191.69-3,828.71

Finding the Fourth Proportional to 6,660.42, 9,191.69 and 3,828.71

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Solution

The fourth proportional to 6,660.42, 9,191.69 and 3,828.71 is: 5,283.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.42 : 9,191.69 = 3,828.71 : x
  2. Step 2: Convert to fraction form
    6,660.42/9,191.69 = 3,828.71/x
  3. Step 3: Cross multiply
    6,660.42x = 9,191.69 × 3,828.71
  4. Step 4: Simplify right side
    6,660.42x = 35,192,319.26
  5. Step 5: Solve for x
    x = 35,192,319.26/6,660.42
  6. Step 6: Final answer
    x = 5,283.80

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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.