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Finding the Fourth Proportional to 5,007.50, 6,910.36 and 2,799.50

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Solution

The fourth proportional to 5,007.50, 6,910.36 and 2,799.50 is: 3,863.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.50 : 6,910.36 = 2,799.50 : x
  2. Step 2: Convert to fraction form
    5,007.50/6,910.36 = 2,799.50/x
  3. Step 3: Cross multiply
    5,007.50x = 6,910.36 × 2,799.50
  4. Step 4: Simplify right side
    5,007.50x = 19,345,552.82
  5. Step 5: Solve for x
    x = 19,345,552.82/5,007.50
  6. Step 6: Final answer
    x = 3,863.32

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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.