Home / 2,299.10-3,448.39-911.55

Finding the Fourth Proportional to 2,299.10, 3,448.39 and 911.55

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Solution

The fourth proportional to 2,299.10, 3,448.39 and 911.55 is: 1,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.10 : 3,448.39 = 911.55 : x
  2. Step 2: Convert to fraction form
    2,299.10/3,448.39 = 911.55/x
  3. Step 3: Cross multiply
    2,299.10x = 3,448.39 × 911.55
  4. Step 4: Simplify right side
    2,299.10x = 3,143,392.27
  5. Step 5: Solve for x
    x = 3,143,392.27/2,299.10
  6. Step 6: Final answer
    x = 1,367.23

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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.