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Finding the Fourth Proportional to 592.71, 816.86 and 393.19

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Solution

The fourth proportional to 592.71, 816.86 and 393.19 is: 541.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.71 : 816.86 = 393.19 : x
  2. Step 2: Convert to fraction form
    592.71/816.86 = 393.19/x
  3. Step 3: Cross multiply
    592.71x = 816.86 × 393.19
  4. Step 4: Simplify right side
    592.71x = 321,180.24
  5. Step 5: Solve for x
    x = 321,180.24/592.71
  6. Step 6: Final answer
    x = 541.88

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Double scale
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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.