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Finding the Fourth Proportional to 2,455.25, 3,388.25 and 1,351.25

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Solution

The fourth proportional to 2,455.25, 3,388.25 and 1,351.25 is: 1,864.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.25 : 3,388.25 = 1,351.25 : x
  2. Step 2: Convert to fraction form
    2,455.25/3,388.25 = 1,351.25/x
  3. Step 3: Cross multiply
    2,455.25x = 3,388.25 × 1,351.25
  4. Step 4: Simplify right side
    2,455.25x = 4,578,366.06
  5. Step 5: Solve for x
    x = 4,578,366.06/2,455.25
  6. Step 6: Final answer
    x = 1,864.73

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1.5x scale

Why These Related Problems?

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