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Finding the Fourth Proportional to 2,808.98, 3,876.41 and 1,550.07

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Solution

The fourth proportional to 2,808.98, 3,876.41 and 1,550.07 is: 2,139.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.98 : 3,876.41 = 1,550.07 : x
  2. Step 2: Convert to fraction form
    2,808.98/3,876.41 = 1,550.07/x
  3. Step 3: Cross multiply
    2,808.98x = 3,876.41 × 1,550.07
  4. Step 4: Simplify right side
    2,808.98x = 6,008,699.10
  5. Step 5: Solve for x
    x = 6,008,699.10/2,808.98
  6. Step 6: Final answer
    x = 2,139.11

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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.