Home / 2,268.66-3,129.94-1,429.44

Finding the Fourth Proportional to 2,268.66, 3,129.94 and 1,429.44

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Solution

The fourth proportional to 2,268.66, 3,129.94 and 1,429.44 is: 1,972.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.66 : 3,129.94 = 1,429.44 : x
  2. Step 2: Convert to fraction form
    2,268.66/3,129.94 = 1,429.44/x
  3. Step 3: Cross multiply
    2,268.66x = 3,129.94 × 1,429.44
  4. Step 4: Simplify right side
    2,268.66x = 4,474,061.43
  5. Step 5: Solve for x
    x = 4,474,061.43/2,268.66
  6. Step 6: Final answer
    x = 1,972.12

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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.