Home / 3,218.08-4,440.16-2,173.12

Finding the Fourth Proportional to 3,218.08, 4,440.16 and 2,173.12

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Solution

The fourth proportional to 3,218.08, 4,440.16 and 2,173.12 is: 2,998.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.08 : 4,440.16 = 2,173.12 : x
  2. Step 2: Convert to fraction form
    3,218.08/4,440.16 = 2,173.12/x
  3. Step 3: Cross multiply
    3,218.08x = 4,440.16 × 2,173.12
  4. Step 4: Simplify right side
    3,218.08x = 9,649,000.50
  5. Step 5: Solve for x
    x = 9,649,000.50/3,218.08
  6. Step 6: Final answer
    x = 2,998.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.