Home / 3,822.12-5,723.64-2,721.24

Finding the Fourth Proportional to 3,822.12, 5,723.64 and 2,721.24

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Solution

The fourth proportional to 3,822.12, 5,723.64 and 2,721.24 is: 4,075.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.12 : 5,723.64 = 2,721.24 : x
  2. Step 2: Convert to fraction form
    3,822.12/5,723.64 = 2,721.24/x
  3. Step 3: Cross multiply
    3,822.12x = 5,723.64 × 2,721.24
  4. Step 4: Simplify right side
    3,822.12x = 15,575,398.11
  5. Step 5: Solve for x
    x = 15,575,398.11/3,822.12
  6. Step 6: Final answer
    x = 4,075.07

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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.