Home / 2,268.63-3,130.79-1,274.09

Finding the Fourth Proportional to 2,268.63, 3,130.79 and 1,274.09

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Solution

The fourth proportional to 2,268.63, 3,130.79 and 1,274.09 is: 1,758.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.63 : 3,130.79 = 1,274.09 : x
  2. Step 2: Convert to fraction form
    2,268.63/3,130.79 = 1,274.09/x
  3. Step 3: Cross multiply
    2,268.63x = 3,130.79 × 1,274.09
  4. Step 4: Simplify right side
    2,268.63x = 3,988,886.21
  5. Step 5: Solve for x
    x = 3,988,886.21/2,268.63
  6. Step 6: Final answer
    x = 1,758.28

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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.