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Finding the Fourth Proportional to 1,806.81, 2,707.85 and 1,027.17

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Solution

The fourth proportional to 1,806.81, 2,707.85 and 1,027.17 is: 1,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.81 : 2,707.85 = 1,027.17 : x
  2. Step 2: Convert to fraction form
    1,806.81/2,707.85 = 1,027.17/x
  3. Step 3: Cross multiply
    1,806.81x = 2,707.85 × 1,027.17
  4. Step 4: Simplify right side
    1,806.81x = 2,781,417.15
  5. Step 5: Solve for x
    x = 2,781,417.15/1,806.81
  6. Step 6: Final answer
    x = 1,539.41

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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.