Home / 3,985.36-5,500-2,217

Finding the Fourth Proportional to 3,985.36, 5,500 and 2,217

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Solution

The fourth proportional to 3,985.36, 5,500 and 2,217 is: 3,059.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.36 : 5,500 = 2,217 : x
  2. Step 2: Convert to fraction form
    3,985.36/5,500 = 2,217/x
  3. Step 3: Cross multiply
    3,985.36x = 5,500 × 2,217
  4. Step 4: Simplify right side
    3,985.36x = 12,193,500
  5. Step 5: Solve for x
    x = 12,193,500/3,985.36
  6. Step 6: Final answer
    x = 3,059.57

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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.