Home / 2,005.22-3,008.30-618.53

Finding the Fourth Proportional to 2,005.22, 3,008.30 and 618.53

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Solution

The fourth proportional to 2,005.22, 3,008.30 and 618.53 is: 927.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.22 : 3,008.30 = 618.53 : x
  2. Step 2: Convert to fraction form
    2,005.22/3,008.30 = 618.53/x
  3. Step 3: Cross multiply
    2,005.22x = 3,008.30 × 618.53
  4. Step 4: Simplify right side
    2,005.22x = 1,860,705.66
  5. Step 5: Solve for x
    x = 1,860,705.66/2,005.22
  6. Step 6: Final answer
    x = 927.93

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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.