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Finding the Fourth Proportional to 532.79, 798 and 395.51

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Solution

The fourth proportional to 532.79, 798 and 395.51 is: 592.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.79 : 798 = 395.51 : x
  2. Step 2: Convert to fraction form
    532.79/798 = 395.51/x
  3. Step 3: Cross multiply
    532.79x = 798 × 395.51
  4. Step 4: Simplify right side
    532.79x = 315,616.98
  5. Step 5: Solve for x
    x = 315,616.98/532.79
  6. Step 6: Final answer
    x = 592.39

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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.