Home / 3,641.92-5,020.74-3,080.12

Finding the Fourth Proportional to 3,641.92, 5,020.74 and 3,080.12

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Solution

The fourth proportional to 3,641.92, 5,020.74 and 3,080.12 is: 4,246.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,641.92 : 5,020.74 = 3,080.12 : x
  2. Step 2: Convert to fraction form
    3,641.92/5,020.74 = 3,080.12/x
  3. Step 3: Cross multiply
    3,641.92x = 5,020.74 × 3,080.12
  4. Step 4: Simplify right side
    3,641.92x = 15,464,481.69
  5. Step 5: Solve for x
    x = 15,464,481.69/3,641.92
  6. Step 6: Final answer
    x = 4,246.24

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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.