Home / 2,972.24-4,453.32-1,815.56

Finding the Fourth Proportional to 2,972.24, 4,453.32 and 1,815.56

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Solution

The fourth proportional to 2,972.24, 4,453.32 and 1,815.56 is: 2,720.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.24 : 4,453.32 = 1,815.56 : x
  2. Step 2: Convert to fraction form
    2,972.24/4,453.32 = 1,815.56/x
  3. Step 3: Cross multiply
    2,972.24x = 4,453.32 × 1,815.56
  4. Step 4: Simplify right side
    2,972.24x = 8,085,269.66
  5. Step 5: Solve for x
    x = 8,085,269.66/2,972.24
  6. Step 6: Final answer
    x = 2,720.26

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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.