Home / 2,114.16-3,170.46-727.11

Finding the Fourth Proportional to 2,114.16, 3,170.46 and 727.11

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Solution

The fourth proportional to 2,114.16, 3,170.46 and 727.11 is: 1,090.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.16 : 3,170.46 = 727.11 : x
  2. Step 2: Convert to fraction form
    2,114.16/3,170.46 = 727.11/x
  3. Step 3: Cross multiply
    2,114.16x = 3,170.46 × 727.11
  4. Step 4: Simplify right side
    2,114.16x = 2,305,273.17
  5. Step 5: Solve for x
    x = 2,305,273.17/2,114.16
  6. Step 6: Final answer
    x = 1,090.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.