Home / 1,148.66-1,721.78-481.94

Finding the Fourth Proportional to 1,148.66, 1,721.78 and 481.94

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Solution

The fourth proportional to 1,148.66, 1,721.78 and 481.94 is: 722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.66 : 1,721.78 = 481.94 : x
  2. Step 2: Convert to fraction form
    1,148.66/1,721.78 = 481.94/x
  3. Step 3: Cross multiply
    1,148.66x = 1,721.78 × 481.94
  4. Step 4: Simplify right side
    1,148.66x = 829,785.44
  5. Step 5: Solve for x
    x = 829,785.44/1,148.66
  6. Step 6: Final answer
    x = 722.40

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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.