Home / 5,413.31-8,123.14-3,438.85

Finding the Fourth Proportional to 5,413.31, 8,123.14 and 3,438.85

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Solution

The fourth proportional to 5,413.31, 8,123.14 and 3,438.85 is: 5,160.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,413.31 : 8,123.14 = 3,438.85 : x
  2. Step 2: Convert to fraction form
    5,413.31/8,123.14 = 3,438.85/x
  3. Step 3: Cross multiply
    5,413.31x = 8,123.14 × 3,438.85
  4. Step 4: Simplify right side
    5,413.31x = 27,934,219.37
  5. Step 5: Solve for x
    x = 27,934,219.37/5,413.31
  6. Step 6: Final answer
    x = 5,160.29

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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.