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Finding the Fourth Proportional to 2,455.54, 3,388.61 and 1,351.54

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Solution

The fourth proportional to 2,455.54, 3,388.61 and 1,351.54 is: 1,865.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.54 : 3,388.61 = 1,351.54 : x
  2. Step 2: Convert to fraction form
    2,455.54/3,388.61 = 1,351.54/x
  3. Step 3: Cross multiply
    2,455.54x = 3,388.61 × 1,351.54
  4. Step 4: Simplify right side
    2,455.54x = 4,579,841.96
  5. Step 5: Solve for x
    x = 4,579,841.96/2,455.54
  6. Step 6: Final answer
    x = 1,865.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.