Home / 1,331.24-1,996.86-357.31

Finding the Fourth Proportional to 1,331.24, 1,996.86 and 357.31

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Solution

The fourth proportional to 1,331.24, 1,996.86 and 357.31 is: 535.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.24 : 1,996.86 = 357.31 : x
  2. Step 2: Convert to fraction form
    1,331.24/1,996.86 = 357.31/x
  3. Step 3: Cross multiply
    1,331.24x = 1,996.86 × 357.31
  4. Step 4: Simplify right side
    1,331.24x = 713,488.06
  5. Step 5: Solve for x
    x = 713,488.06/1,331.24
  6. Step 6: Final answer
    x = 535.96

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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.