Home / 1,351.18-2,027.23-620.61

Finding the Fourth Proportional to 1,351.18, 2,027.23 and 620.61

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Solution

The fourth proportional to 1,351.18, 2,027.23 and 620.61 is: 931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.18 : 2,027.23 = 620.61 : x
  2. Step 2: Convert to fraction form
    1,351.18/2,027.23 = 620.61/x
  3. Step 3: Cross multiply
    1,351.18x = 2,027.23 × 620.61
  4. Step 4: Simplify right side
    1,351.18x = 1,258,121.46
  5. Step 5: Solve for x
    x = 1,258,121.46/1,351.18
  6. Step 6: Final answer
    x = 931.13

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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.