Home / 1,268.08-1,751.15-1,199.06

Finding the Fourth Proportional to 1,268.08, 1,751.15 and 1,199.06

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Solution

The fourth proportional to 1,268.08, 1,751.15 and 1,199.06 is: 1,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268.08 : 1,751.15 = 1,199.06 : x
  2. Step 2: Convert to fraction form
    1,268.08/1,751.15 = 1,199.06/x
  3. Step 3: Cross multiply
    1,268.08x = 1,751.15 × 1,199.06
  4. Step 4: Simplify right side
    1,268.08x = 2,099,725.91
  5. Step 5: Solve for x
    x = 2,099,725.91/1,268.08
  6. Step 6: Final answer
    x = 1,655.83

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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.