Home / 2,276.15-3,413.75-1,105.65

Finding the Fourth Proportional to 2,276.15, 3,413.75 and 1,105.65

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Solution

The fourth proportional to 2,276.15, 3,413.75 and 1,105.65 is: 1,658.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.15 : 3,413.75 = 1,105.65 : x
  2. Step 2: Convert to fraction form
    2,276.15/3,413.75 = 1,105.65/x
  3. Step 3: Cross multiply
    2,276.15x = 3,413.75 × 1,105.65
  4. Step 4: Simplify right side
    2,276.15x = 3,774,407.16
  5. Step 5: Solve for x
    x = 3,774,407.16/2,276.15
  6. Step 6: Final answer
    x = 1,658.24

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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.