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Finding the Fourth Proportional to 551.72, 766.71 and 544.83

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Solution

The fourth proportional to 551.72, 766.71 and 544.83 is: 757.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.72 : 766.71 = 544.83 : x
  2. Step 2: Convert to fraction form
    551.72/766.71 = 544.83/x
  3. Step 3: Cross multiply
    551.72x = 766.71 × 544.83
  4. Step 4: Simplify right side
    551.72x = 417,726.61
  5. Step 5: Solve for x
    x = 417,726.61/551.72
  6. Step 6: Final answer
    x = 757.14

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.