Home / 7,209.28-10,813.94-2,015.20

Finding the Fourth Proportional to 7,209.28, 10,813.94 and 2,015.20

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Solution

The fourth proportional to 7,209.28, 10,813.94 and 2,015.20 is: 3,022.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.28 : 10,813.94 = 2,015.20 : x
  2. Step 2: Convert to fraction form
    7,209.28/10,813.94 = 2,015.20/x
  3. Step 3: Cross multiply
    7,209.28x = 10,813.94 × 2,015.20
  4. Step 4: Simplify right side
    7,209.28x = 21,792,251.89
  5. Step 5: Solve for x
    x = 21,792,251.89/7,209.28
  6. Step 6: Final answer
    x = 3,022.81

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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.