Home / 3,099.10-4,649.76-1,321.06

Finding the Fourth Proportional to 3,099.10, 4,649.76 and 1,321.06

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Solution

The fourth proportional to 3,099.10, 4,649.76 and 1,321.06 is: 1,982.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.10 : 4,649.76 = 1,321.06 : x
  2. Step 2: Convert to fraction form
    3,099.10/4,649.76 = 1,321.06/x
  3. Step 3: Cross multiply
    3,099.10x = 4,649.76 × 1,321.06
  4. Step 4: Simplify right side
    3,099.10x = 6,142,611.95
  5. Step 5: Solve for x
    x = 6,142,611.95/3,099.10
  6. Step 6: Final answer
    x = 1,982.06

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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.