Home / 3,933.24-5,428.45-2,254.31

Finding the Fourth Proportional to 3,933.24, 5,428.45 and 2,254.31

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Solution

The fourth proportional to 3,933.24, 5,428.45 and 2,254.31 is: 3,111.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.24 : 5,428.45 = 2,254.31 : x
  2. Step 2: Convert to fraction form
    3,933.24/5,428.45 = 2,254.31/x
  3. Step 3: Cross multiply
    3,933.24x = 5,428.45 × 2,254.31
  4. Step 4: Simplify right side
    3,933.24x = 12,237,409.12
  5. Step 5: Solve for x
    x = 12,237,409.12/3,933.24
  6. Step 6: Final answer
    x = 3,111.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.