Home / 2,268.21-3,130.31-1,273.58

Finding the Fourth Proportional to 2,268.21, 3,130.31 and 1,273.58

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Solution

The fourth proportional to 2,268.21, 3,130.31 and 1,273.58 is: 1,757.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.21 : 3,130.31 = 1,273.58 : x
  2. Step 2: Convert to fraction form
    2,268.21/3,130.31 = 1,273.58/x
  3. Step 3: Cross multiply
    2,268.21x = 3,130.31 × 1,273.58
  4. Step 4: Simplify right side
    2,268.21x = 3,986,700.21
  5. Step 5: Solve for x
    x = 3,986,700.21/2,268.21
  6. Step 6: Final answer
    x = 1,757.64

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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.