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Finding the Fourth Proportional to 2,261.32, 3,392.48 and 800.52

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Solution

The fourth proportional to 2,261.32, 3,392.48 and 800.52 is: 1,200.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.32 : 3,392.48 = 800.52 : x
  2. Step 2: Convert to fraction form
    2,261.32/3,392.48 = 800.52/x
  3. Step 3: Cross multiply
    2,261.32x = 3,392.48 × 800.52
  4. Step 4: Simplify right side
    2,261.32x = 2,715,748.09
  5. Step 5: Solve for x
    x = 2,715,748.09/2,261.32
  6. Step 6: Final answer
    x = 1,200.96

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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.