Home / 5,380.04-7,413.54-3,885.32

Finding the Fourth Proportional to 5,380.04, 7,413.54 and 3,885.32

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Solution

The fourth proportional to 5,380.04, 7,413.54 and 3,885.32 is: 5,353.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.04 : 7,413.54 = 3,885.32 : x
  2. Step 2: Convert to fraction form
    5,380.04/7,413.54 = 3,885.32/x
  3. Step 3: Cross multiply
    5,380.04x = 7,413.54 × 3,885.32
  4. Step 4: Simplify right side
    5,380.04x = 28,803,975.23
  5. Step 5: Solve for x
    x = 28,803,975.23/5,380.04
  6. Step 6: Final answer
    x = 5,353.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.