Home / 2,263.11-3,122.78-1,268.31

Finding the Fourth Proportional to 2,263.11, 3,122.78 and 1,268.31

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Solution

The fourth proportional to 2,263.11, 3,122.78 and 1,268.31 is: 1,750.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.11 : 3,122.78 = 1,268.31 : x
  2. Step 2: Convert to fraction form
    2,263.11/3,122.78 = 1,268.31/x
  3. Step 3: Cross multiply
    2,263.11x = 3,122.78 × 1,268.31
  4. Step 4: Simplify right side
    2,263.11x = 3,960,646.76
  5. Step 5: Solve for x
    x = 3,960,646.76/2,263.11
  6. Step 6: Final answer
    x = 1,750.09

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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.