Home / 5,102.12-7,645.87-2,906.31

Finding the Fourth Proportional to 5,102.12, 7,645.87 and 2,906.31

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Solution

The fourth proportional to 5,102.12, 7,645.87 and 2,906.31 is: 4,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.12 : 7,645.87 = 2,906.31 : x
  2. Step 2: Convert to fraction form
    5,102.12/7,645.87 = 2,906.31/x
  3. Step 3: Cross multiply
    5,102.12x = 7,645.87 × 2,906.31
  4. Step 4: Simplify right side
    5,102.12x = 22,221,253.91
  5. Step 5: Solve for x
    x = 22,221,253.91/5,102.12
  6. Step 6: Final answer
    x = 4,355.30

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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.