Home / 1,268.26-1,750.68-1,135.24

Finding the Fourth Proportional to 1,268.26, 1,750.68 and 1,135.24

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Solution

The fourth proportional to 1,268.26, 1,750.68 and 1,135.24 is: 1,567.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268.26 : 1,750.68 = 1,135.24 : x
  2. Step 2: Convert to fraction form
    1,268.26/1,750.68 = 1,135.24/x
  3. Step 3: Cross multiply
    1,268.26x = 1,750.68 × 1,135.24
  4. Step 4: Simplify right side
    1,268.26x = 1,987,444.15
  5. Step 5: Solve for x
    x = 1,987,444.15/1,268.26
  6. Step 6: Final answer
    x = 1,567.07

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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.