Home / 3,065.68-4,231.60-1,806.65

Finding the Fourth Proportional to 3,065.68, 4,231.60 and 1,806.65

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Solution

The fourth proportional to 3,065.68, 4,231.60 and 1,806.65 is: 2,493.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.68 : 4,231.60 = 1,806.65 : x
  2. Step 2: Convert to fraction form
    3,065.68/4,231.60 = 1,806.65/x
  3. Step 3: Cross multiply
    3,065.68x = 4,231.60 × 1,806.65
  4. Step 4: Simplify right side
    3,065.68x = 7,645,020.14
  5. Step 5: Solve for x
    x = 7,645,020.14/3,065.68
  6. Step 6: Final answer
    x = 2,493.74

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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.