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Finding the Fourth Proportional to 2,551.98, 3,828.10 and 798.18

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Solution

The fourth proportional to 2,551.98, 3,828.10 and 798.18 is: 1,197.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.98 : 3,828.10 = 798.18 : x
  2. Step 2: Convert to fraction form
    2,551.98/3,828.10 = 798.18/x
  3. Step 3: Cross multiply
    2,551.98x = 3,828.10 × 798.18
  4. Step 4: Simplify right side
    2,551.98x = 3,055,512.86
  5. Step 5: Solve for x
    x = 3,055,512.86/2,551.98
  6. Step 6: Final answer
    x = 1,197.31

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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.