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Finding the Fourth Proportional to 547.58, 822.17 and 537.86

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Solution

The fourth proportional to 547.58, 822.17 and 537.86 is: 807.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.58 : 822.17 = 537.86 : x
  2. Step 2: Convert to fraction form
    547.58/822.17 = 537.86/x
  3. Step 3: Cross multiply
    547.58x = 822.17 × 537.86
  4. Step 4: Simplify right side
    547.58x = 442,205.56
  5. Step 5: Solve for x
    x = 442,205.56/547.58
  6. Step 6: Final answer
    x = 807.57

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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.