Home / 3,985.06-5,499.66-2,217.22

Finding the Fourth Proportional to 3,985.06, 5,499.66 and 2,217.22

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Solution

The fourth proportional to 3,985.06, 5,499.66 and 2,217.22 is: 3,059.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.06 : 5,499.66 = 2,217.22 : x
  2. Step 2: Convert to fraction form
    3,985.06/5,499.66 = 2,217.22/x
  3. Step 3: Cross multiply
    3,985.06x = 5,499.66 × 2,217.22
  4. Step 4: Simplify right side
    3,985.06x = 12,193,956.15
  5. Step 5: Solve for x
    x = 12,193,956.15/3,985.06
  6. Step 6: Final answer
    x = 3,059.92

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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.