Home / 5,284.92-7,919.56-2,161.15

Finding the Fourth Proportional to 5,284.92, 7,919.56 and 2,161.15

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Solution

The fourth proportional to 5,284.92, 7,919.56 and 2,161.15 is: 3,238.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.92 : 7,919.56 = 2,161.15 : x
  2. Step 2: Convert to fraction form
    5,284.92/7,919.56 = 2,161.15/x
  3. Step 3: Cross multiply
    5,284.92x = 7,919.56 × 2,161.15
  4. Step 4: Simplify right side
    5,284.92x = 17,115,357.09
  5. Step 5: Solve for x
    x = 17,115,357.09/5,284.92
  6. Step 6: Final answer
    x = 3,238.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.