Home / 5,103.18-7,655.22-2,181.60

Finding the Fourth Proportional to 5,103.18, 7,655.22 and 2,181.60

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Solution

The fourth proportional to 5,103.18, 7,655.22 and 2,181.60 is: 3,272.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.18 : 7,655.22 = 2,181.60 : x
  2. Step 2: Convert to fraction form
    5,103.18/7,655.22 = 2,181.60/x
  3. Step 3: Cross multiply
    5,103.18x = 7,655.22 × 2,181.60
  4. Step 4: Simplify right side
    5,103.18x = 16,700,627.95
  5. Step 5: Solve for x
    x = 16,700,627.95/5,103.18
  6. Step 6: Final answer
    x = 3,272.59

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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.