Home / 2,114.11-3,172.49-1,019.60

Finding the Fourth Proportional to 2,114.11, 3,172.49 and 1,019.60

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Solution

The fourth proportional to 2,114.11, 3,172.49 and 1,019.60 is: 1,530.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.11 : 3,172.49 = 1,019.60 : x
  2. Step 2: Convert to fraction form
    2,114.11/3,172.49 = 1,019.60/x
  3. Step 3: Cross multiply
    2,114.11x = 3,172.49 × 1,019.60
  4. Step 4: Simplify right side
    2,114.11x = 3,234,670.80
  5. Step 5: Solve for x
    x = 3,234,670.80/2,114.11
  6. Step 6: Final answer
    x = 1,530.04

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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.