Home / 7,311.12-10,961.01-3,610.80

Finding the Fourth Proportional to 7,311.12, 10,961.01 and 3,610.80

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Solution

The fourth proportional to 7,311.12, 10,961.01 and 3,610.80 is: 5,413.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.12 : 10,961.01 = 3,610.80 : x
  2. Step 2: Convert to fraction form
    7,311.12/10,961.01 = 3,610.80/x
  3. Step 3: Cross multiply
    7,311.12x = 10,961.01 × 3,610.80
  4. Step 4: Simplify right side
    7,311.12x = 39,578,014.91
  5. Step 5: Solve for x
    x = 39,578,014.91/7,311.12
  6. Step 6: Final answer
    x = 5,413.40

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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.