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Finding the Fourth Proportional to 2,264.39, 3,396.12 and 620.81

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Solution

The fourth proportional to 2,264.39, 3,396.12 and 620.81 is: 931.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,264.39 : 3,396.12 = 620.81 : x
  2. Step 2: Convert to fraction form
    2,264.39/3,396.12 = 620.81/x
  3. Step 3: Cross multiply
    2,264.39x = 3,396.12 × 620.81
  4. Step 4: Simplify right side
    2,264.39x = 2,108,345.26
  5. Step 5: Solve for x
    x = 2,108,345.26/2,264.39
  6. Step 6: Final answer
    x = 931.09

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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.