Home / 3,927.53-5,413.69-2,980.24

Finding the Fourth Proportional to 3,927.53, 5,413.69 and 2,980.24

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Solution

The fourth proportional to 3,927.53, 5,413.69 and 2,980.24 is: 4,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.53 : 5,413.69 = 2,980.24 : x
  2. Step 2: Convert to fraction form
    3,927.53/5,413.69 = 2,980.24/x
  3. Step 3: Cross multiply
    3,927.53x = 5,413.69 × 2,980.24
  4. Step 4: Simplify right side
    3,927.53x = 16,134,095.49
  5. Step 5: Solve for x
    x = 16,134,095.49/3,927.53
  6. Step 6: Final answer
    x = 4,107.95

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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.