Home / 2,316.78-3,197.16-1,268.87

Finding the Fourth Proportional to 2,316.78, 3,197.16 and 1,268.87

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Solution

The fourth proportional to 2,316.78, 3,197.16 and 1,268.87 is: 1,751.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.78 : 3,197.16 = 1,268.87 : x
  2. Step 2: Convert to fraction form
    2,316.78/3,197.16 = 1,268.87/x
  3. Step 3: Cross multiply
    2,316.78x = 3,197.16 × 1,268.87
  4. Step 4: Simplify right side
    2,316.78x = 4,056,764.42
  5. Step 5: Solve for x
    x = 4,056,764.42/2,316.78
  6. Step 6: Final answer
    x = 1,751.04

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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.