Home / 5,413.05-8,122.76-3,438.60

Finding the Fourth Proportional to 5,413.05, 8,122.76 and 3,438.60

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Solution

The fourth proportional to 5,413.05, 8,122.76 and 3,438.60 is: 5,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.05 : 8,122.76 = 3,438.60 : x
  2. Step 2: Convert to fraction form
    5,413.05/8,122.76 = 3,438.60/x
  3. Step 3: Cross multiply
    5,413.05x = 8,122.76 × 3,438.60
  4. Step 4: Simplify right side
    5,413.05x = 27,930,890.52
  5. Step 5: Solve for x
    x = 27,930,890.52/5,413.05
  6. Step 6: Final answer
    x = 5,159.91

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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.