Home / 2,847.17-3,929.57-2,103.29

Finding the Fourth Proportional to 2,847.17, 3,929.57 and 2,103.29

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Solution

The fourth proportional to 2,847.17, 3,929.57 and 2,103.29 is: 2,902.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.17 : 3,929.57 = 2,103.29 : x
  2. Step 2: Convert to fraction form
    2,847.17/3,929.57 = 2,103.29/x
  3. Step 3: Cross multiply
    2,847.17x = 3,929.57 × 2,103.29
  4. Step 4: Simplify right side
    2,847.17x = 8,264,995.12
  5. Step 5: Solve for x
    x = 8,264,995.12/2,847.17
  6. Step 6: Final answer
    x = 2,902.89

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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.