Home / 7,311.48-10,967.94-2,118.12

Finding the Fourth Proportional to 7,311.48, 10,967.94 and 2,118.12

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Solution

The fourth proportional to 7,311.48, 10,967.94 and 2,118.12 is: 3,177.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.48 : 10,967.94 = 2,118.12 : x
  2. Step 2: Convert to fraction form
    7,311.48/10,967.94 = 2,118.12/x
  3. Step 3: Cross multiply
    7,311.48x = 10,967.94 × 2,118.12
  4. Step 4: Simplify right side
    7,311.48x = 23,231,413.07
  5. Step 5: Solve for x
    x = 23,231,413.07/7,311.48
  6. Step 6: Final answer
    x = 3,177.39

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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.