Home / 3,985.26-5,499.81-2,217.30

Finding the Fourth Proportional to 3,985.26, 5,499.81 and 2,217.30

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Solution

The fourth proportional to 3,985.26, 5,499.81 and 2,217.30 is: 3,059.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.26 : 5,499.81 = 2,217.30 : x
  2. Step 2: Convert to fraction form
    3,985.26/5,499.81 = 2,217.30/x
  3. Step 3: Cross multiply
    3,985.26x = 5,499.81 × 2,217.30
  4. Step 4: Simplify right side
    3,985.26x = 12,194,728.71
  5. Step 5: Solve for x
    x = 12,194,728.71/3,985.26
  6. Step 6: Final answer
    x = 3,059.96

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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.