Home / 2,114.12-3,172.80-799.04

Finding the Fourth Proportional to 2,114.12, 3,172.80 and 799.04

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Solution

The fourth proportional to 2,114.12, 3,172.80 and 799.04 is: 1,199.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.12 : 3,172.80 = 799.04 : x
  2. Step 2: Convert to fraction form
    2,114.12/3,172.80 = 799.04/x
  3. Step 3: Cross multiply
    2,114.12x = 3,172.80 × 799.04
  4. Step 4: Simplify right side
    2,114.12x = 2,535,194.11
  5. Step 5: Solve for x
    x = 2,535,194.11/2,114.12
  6. Step 6: Final answer
    x = 1,199.17

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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.