Home / 1,780.66-2,667.51-1,225.27

Finding the Fourth Proportional to 1,780.66, 2,667.51 and 1,225.27

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Solution

The fourth proportional to 1,780.66, 2,667.51 and 1,225.27 is: 1,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.66 : 2,667.51 = 1,225.27 : x
  2. Step 2: Convert to fraction form
    1,780.66/2,667.51 = 1,225.27/x
  3. Step 3: Cross multiply
    1,780.66x = 2,667.51 × 1,225.27
  4. Step 4: Simplify right side
    1,780.66x = 3,268,413.31
  5. Step 5: Solve for x
    x = 3,268,413.31/1,780.66
  6. Step 6: Final answer
    x = 1,835.51

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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.