Home / 4,815.72-7,218.05-2,213.19

Finding the Fourth Proportional to 4,815.72, 7,218.05 and 2,213.19

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Solution

The fourth proportional to 4,815.72, 7,218.05 and 2,213.19 is: 3,317.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.72 : 7,218.05 = 2,213.19 : x
  2. Step 2: Convert to fraction form
    4,815.72/7,218.05 = 2,213.19/x
  3. Step 3: Cross multiply
    4,815.72x = 7,218.05 × 2,213.19
  4. Step 4: Simplify right side
    4,815.72x = 15,974,905.01
  5. Step 5: Solve for x
    x = 15,974,905.01/4,815.72
  6. Step 6: Final answer
    x = 3,317.24

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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.