Home / 1,347.27-2,021.10-481.38

Finding the Fourth Proportional to 1,347.27, 2,021.10 and 481.38

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Solution

The fourth proportional to 1,347.27, 2,021.10 and 481.38 is: 722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.27 : 2,021.10 = 481.38 : x
  2. Step 2: Convert to fraction form
    1,347.27/2,021.10 = 481.38/x
  3. Step 3: Cross multiply
    1,347.27x = 2,021.10 × 481.38
  4. Step 4: Simplify right side
    1,347.27x = 972,917.12
  5. Step 5: Solve for x
    x = 972,917.12/1,347.27
  6. Step 6: Final answer
    x = 722.14

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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.