Home / 2,276.42-3,141.37-1,268.09

Finding the Fourth Proportional to 2,276.42, 3,141.37 and 1,268.09

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Solution

The fourth proportional to 2,276.42, 3,141.37 and 1,268.09 is: 1,749.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.42 : 3,141.37 = 1,268.09 : x
  2. Step 2: Convert to fraction form
    2,276.42/3,141.37 = 1,268.09/x
  3. Step 3: Cross multiply
    2,276.42x = 3,141.37 × 1,268.09
  4. Step 4: Simplify right side
    2,276.42x = 3,983,541.11
  5. Step 5: Solve for x
    x = 3,983,541.11/2,276.42
  6. Step 6: Final answer
    x = 1,749.91

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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.