Home / 691.03-1,036.44-344.25

Finding the Fourth Proportional to 691.03, 1,036.44 and 344.25

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Solution

The fourth proportional to 691.03, 1,036.44 and 344.25 is: 516.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    691.03 : 1,036.44 = 344.25 : x
  2. Step 2: Convert to fraction form
    691.03/1,036.44 = 344.25/x
  3. Step 3: Cross multiply
    691.03x = 1,036.44 × 344.25
  4. Step 4: Simplify right side
    691.03x = 356,794.47
  5. Step 5: Solve for x
    x = 356,794.47/691.03
  6. Step 6: Final answer
    x = 516.32

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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.