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Finding the Fourth Proportional to 791.02, 1,186.52 and 358.17

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Solution

The fourth proportional to 791.02, 1,186.52 and 358.17 is: 537.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    791.02 : 1,186.52 = 358.17 : x
  2. Step 2: Convert to fraction form
    791.02/1,186.52 = 358.17/x
  3. Step 3: Cross multiply
    791.02x = 1,186.52 × 358.17
  4. Step 4: Simplify right side
    791.02x = 424,979.32
  5. Step 5: Solve for x
    x = 424,979.32/791.02
  6. Step 6: Final answer
    x = 537.26

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Double scale
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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.