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Finding the Fourth Proportional to 1,808.97, 2,709.08 and 1,252.12

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Solution

The fourth proportional to 1,808.97, 2,709.08 and 1,252.12 is: 1,875.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.97 : 2,709.08 = 1,252.12 : x
  2. Step 2: Convert to fraction form
    1,808.97/2,709.08 = 1,252.12/x
  3. Step 3: Cross multiply
    1,808.97x = 2,709.08 × 1,252.12
  4. Step 4: Simplify right side
    1,808.97x = 3,392,095.07
  5. Step 5: Solve for x
    x = 3,392,095.07/1,808.97
  6. Step 6: Final answer
    x = 1,875.15

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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.