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Finding the Fourth Proportional to 1,806.97, 2,710.55 and 508.54

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Solution

The fourth proportional to 1,806.97, 2,710.55 and 508.54 is: 762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.97 : 2,710.55 = 508.54 : x
  2. Step 2: Convert to fraction form
    1,806.97/2,710.55 = 508.54/x
  3. Step 3: Cross multiply
    1,806.97x = 2,710.55 × 508.54
  4. Step 4: Simplify right side
    1,806.97x = 1,378,413.78
  5. Step 5: Solve for x
    x = 1,378,413.78/1,806.97
  6. Step 6: Final answer
    x = 762.83

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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.