Home / 2,813.28-4,222.89-2,299.20

Finding the Fourth Proportional to 2,813.28, 4,222.89 and 2,299.20

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Solution

The fourth proportional to 2,813.28, 4,222.89 and 2,299.20 is: 3,451.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.28 : 4,222.89 = 2,299.20 : x
  2. Step 2: Convert to fraction form
    2,813.28/4,222.89 = 2,299.20/x
  3. Step 3: Cross multiply
    2,813.28x = 4,222.89 × 2,299.20
  4. Step 4: Simplify right side
    2,813.28x = 9,709,268.69
  5. Step 5: Solve for x
    x = 9,709,268.69/2,813.28
  6. Step 6: Final answer
    x = 3,451.23

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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.