Home / 2,275.70-3,413.55-2,081.30

Finding the Fourth Proportional to 2,275.70, 3,413.55 and 2,081.30

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Solution

The fourth proportional to 2,275.70, 3,413.55 and 2,081.30 is: 3,121.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.70 : 3,413.55 = 2,081.30 : x
  2. Step 2: Convert to fraction form
    2,275.70/3,413.55 = 2,081.30/x
  3. Step 3: Cross multiply
    2,275.70x = 3,413.55 × 2,081.30
  4. Step 4: Simplify right side
    2,275.70x = 7,104,621.62
  5. Step 5: Solve for x
    x = 7,104,621.62/2,275.70
  6. Step 6: Final answer
    x = 3,121.95

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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.