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Finding the Fourth Proportional to 2,264.78, 3,396.74 and 620.91

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Solution

The fourth proportional to 2,264.78, 3,396.74 and 620.91 is: 931.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,264.78 : 3,396.74 = 620.91 : x
  2. Step 2: Convert to fraction form
    2,264.78/3,396.74 = 620.91/x
  3. Step 3: Cross multiply
    2,264.78x = 3,396.74 × 620.91
  4. Step 4: Simplify right side
    2,264.78x = 2,109,066.73
  5. Step 5: Solve for x
    x = 2,109,066.73/2,264.78
  6. Step 6: Final answer
    x = 931.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.