Home / 1,302.10-1,954.14-481.15

Finding the Fourth Proportional to 1,302.10, 1,954.14 and 481.15

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Solution

The fourth proportional to 1,302.10, 1,954.14 and 481.15 is: 722.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302.10 : 1,954.14 = 481.15 : x
  2. Step 2: Convert to fraction form
    1,302.10/1,954.14 = 481.15/x
  3. Step 3: Cross multiply
    1,302.10x = 1,954.14 × 481.15
  4. Step 4: Simplify right side
    1,302.10x = 940,234.46
  5. Step 5: Solve for x
    x = 940,234.46/1,302.10
  6. Step 6: Final answer
    x = 722.09

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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.