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Finding the Fourth Proportional to 1,012.14, 1,396.38 and 592.36

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Solution

The fourth proportional to 1,012.14, 1,396.38 and 592.36 is: 817.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012.14 : 1,396.38 = 592.36 : x
  2. Step 2: Convert to fraction form
    1,012.14/1,396.38 = 592.36/x
  3. Step 3: Cross multiply
    1,012.14x = 1,396.38 × 592.36
  4. Step 4: Simplify right side
    1,012.14x = 827,159.66
  5. Step 5: Solve for x
    x = 827,159.66/1,012.14
  6. Step 6: Final answer
    x = 817.24

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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.