Home / 2,278.19-3,413.36-1,778.87

Finding the Fourth Proportional to 2,278.19, 3,413.36 and 1,778.87

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Solution

The fourth proportional to 2,278.19, 3,413.36 and 1,778.87 is: 2,665.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.19 : 3,413.36 = 1,778.87 : x
  2. Step 2: Convert to fraction form
    2,278.19/3,413.36 = 1,778.87/x
  3. Step 3: Cross multiply
    2,278.19x = 3,413.36 × 1,778.87
  4. Step 4: Simplify right side
    2,278.19x = 6,071,936.68
  5. Step 5: Solve for x
    x = 6,071,936.68/2,278.19
  6. Step 6: Final answer
    x = 2,665.24

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1.5x scale

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.