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Finding the Fourth Proportional to 6,413.84, 8,850.12 and 4,059.20

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Solution

The fourth proportional to 6,413.84, 8,850.12 and 4,059.20 is: 5,601.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,413.84 : 8,850.12 = 4,059.20 : x
  2. Step 2: Convert to fraction form
    6,413.84/8,850.12 = 4,059.20/x
  3. Step 3: Cross multiply
    6,413.84x = 8,850.12 × 4,059.20
  4. Step 4: Simplify right side
    6,413.84x = 35,924,407.10
  5. Step 5: Solve for x
    x = 35,924,407.10/6,413.84
  6. Step 6: Final answer
    x = 5,601.08

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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.