Home / 2,108.33-3,162.61-938.06

Finding the Fourth Proportional to 2,108.33, 3,162.61 and 938.06

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Solution

The fourth proportional to 2,108.33, 3,162.61 and 938.06 is: 1,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.33 : 3,162.61 = 938.06 : x
  2. Step 2: Convert to fraction form
    2,108.33/3,162.61 = 938.06/x
  3. Step 3: Cross multiply
    2,108.33x = 3,162.61 × 938.06
  4. Step 4: Simplify right side
    2,108.33x = 2,966,717.94
  5. Step 5: Solve for x
    x = 2,966,717.94/2,108.33
  6. Step 6: Final answer
    x = 1,407.14

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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.