Home / 3,929-5,424.68-2,437.52

Finding the Fourth Proportional to 3,929, 5,424.68 and 2,437.52

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Solution

The fourth proportional to 3,929, 5,424.68 and 2,437.52 is: 3,365.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929 : 5,424.68 = 2,437.52 : x
  2. Step 2: Convert to fraction form
    3,929/5,424.68 = 2,437.52/x
  3. Step 3: Cross multiply
    3,929x = 5,424.68 × 2,437.52
  4. Step 4: Simplify right side
    3,929x = 13,222,765.99
  5. Step 5: Solve for x
    x = 13,222,765.99/3,929
  6. Step 6: Final answer
    x = 3,365.43

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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.