Home / 1,496.45-2,243.66-765.43

Finding the Fourth Proportional to 1,496.45, 2,243.66 and 765.43

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Solution

The fourth proportional to 1,496.45, 2,243.66 and 765.43 is: 1,147.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,496.45 : 2,243.66 = 765.43 : x
  2. Step 2: Convert to fraction form
    1,496.45/2,243.66 = 765.43/x
  3. Step 3: Cross multiply
    1,496.45x = 2,243.66 × 765.43
  4. Step 4: Simplify right side
    1,496.45x = 1,717,364.67
  5. Step 5: Solve for x
    x = 1,717,364.67/1,496.45
  6. Step 6: Final answer
    x = 1,147.63

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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.