Home / 7,405.12-11,108.32-2,211.04

Finding the Fourth Proportional to 7,405.12, 11,108.32 and 2,211.04

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Solution

The fourth proportional to 7,405.12, 11,108.32 and 2,211.04 is: 3,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.12 : 11,108.32 = 2,211.04 : x
  2. Step 2: Convert to fraction form
    7,405.12/11,108.32 = 2,211.04/x
  3. Step 3: Cross multiply
    7,405.12x = 11,108.32 × 2,211.04
  4. Step 4: Simplify right side
    7,405.12x = 24,560,939.85
  5. Step 5: Solve for x
    x = 24,560,939.85/7,405.12
  6. Step 6: Final answer
    x = 3,316.75

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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.