Home / 2,213.08-3,053.92-1,268.80

Finding the Fourth Proportional to 2,213.08, 3,053.92 and 1,268.80

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Solution

The fourth proportional to 2,213.08, 3,053.92 and 1,268.80 is: 1,750.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.08 : 3,053.92 = 1,268.80 : x
  2. Step 2: Convert to fraction form
    2,213.08/3,053.92 = 1,268.80/x
  3. Step 3: Cross multiply
    2,213.08x = 3,053.92 × 1,268.80
  4. Step 4: Simplify right side
    2,213.08x = 3,874,813.70
  5. Step 5: Solve for x
    x = 3,874,813.70/2,213.08
  6. Step 6: Final answer
    x = 1,750.87

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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.