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Finding the Fourth Proportional to 2,265.89, 3,398.18 and 622.49

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Solution

The fourth proportional to 2,265.89, 3,398.18 and 622.49 is: 933.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.89 : 3,398.18 = 622.49 : x
  2. Step 2: Convert to fraction form
    2,265.89/3,398.18 = 622.49/x
  3. Step 3: Cross multiply
    2,265.89x = 3,398.18 × 622.49
  4. Step 4: Simplify right side
    2,265.89x = 2,115,334.62
  5. Step 5: Solve for x
    x = 2,115,334.62/2,265.89
  6. Step 6: Final answer
    x = 933.56

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1.5x scale

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.