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Finding the Fourth Proportional to 551.04, 758 and 547.28

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Solution

The fourth proportional to 551.04, 758 and 547.28 is: 752.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.04 : 758 = 547.28 : x
  2. Step 2: Convert to fraction form
    551.04/758 = 547.28/x
  3. Step 3: Cross multiply
    551.04x = 758 × 547.28
  4. Step 4: Simplify right side
    551.04x = 414,838.24
  5. Step 5: Solve for x
    x = 414,838.24/551.04
  6. Step 6: Final answer
    x = 752.83

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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.