Home / 3,413.41-5,122.11-1,438.92

Finding the Fourth Proportional to 3,413.41, 5,122.11 and 1,438.92

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Solution

The fourth proportional to 3,413.41, 5,122.11 and 1,438.92 is: 2,159.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,413.41 : 5,122.11 = 1,438.92 : x
  2. Step 2: Convert to fraction form
    3,413.41/5,122.11 = 1,438.92/x
  3. Step 3: Cross multiply
    3,413.41x = 5,122.11 × 1,438.92
  4. Step 4: Simplify right side
    3,413.41x = 7,370,306.52
  5. Step 5: Solve for x
    x = 7,370,306.52/3,413.41
  6. Step 6: Final answer
    x = 2,159.22

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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.