Home / 5,178.64-7,146.84-3,413.56

Finding the Fourth Proportional to 5,178.64, 7,146.84 and 3,413.56

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Solution

The fourth proportional to 5,178.64, 7,146.84 and 3,413.56 is: 4,710.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.64 : 7,146.84 = 3,413.56 : x
  2. Step 2: Convert to fraction form
    5,178.64/7,146.84 = 3,413.56/x
  3. Step 3: Cross multiply
    5,178.64x = 7,146.84 × 3,413.56
  4. Step 4: Simplify right side
    5,178.64x = 24,396,167.15
  5. Step 5: Solve for x
    x = 24,396,167.15/5,178.64
  6. Step 6: Final answer
    x = 4,710.92

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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.