Home / 2,868.20-4,302.54-1,202.12

Finding the Fourth Proportional to 2,868.20, 4,302.54 and 1,202.12

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Solution

The fourth proportional to 2,868.20, 4,302.54 and 1,202.12 is: 1,803.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.20 : 4,302.54 = 1,202.12 : x
  2. Step 2: Convert to fraction form
    2,868.20/4,302.54 = 1,202.12/x
  3. Step 3: Cross multiply
    2,868.20x = 4,302.54 × 1,202.12
  4. Step 4: Simplify right side
    2,868.20x = 5,172,169.38
  5. Step 5: Solve for x
    x = 5,172,169.38/2,868.20
  6. Step 6: Final answer
    x = 1,803.28

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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.