Home / 2,265.47-3,398.30-621.79

Finding the Fourth Proportional to 2,265.47, 3,398.30 and 621.79

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Solution

The fourth proportional to 2,265.47, 3,398.30 and 621.79 is: 932.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.47 : 3,398.30 = 621.79 : x
  2. Step 2: Convert to fraction form
    2,265.47/3,398.30 = 621.79/x
  3. Step 3: Cross multiply
    2,265.47x = 3,398.30 × 621.79
  4. Step 4: Simplify right side
    2,265.47x = 2,113,019.68
  5. Step 5: Solve for x
    x = 2,113,019.68/2,265.47
  6. Step 6: Final answer
    x = 932.71

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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.