Home / 5,317.57-7,974.33-1,618.66

Finding the Fourth Proportional to 5,317.57, 7,974.33 and 1,618.66

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Solution

The fourth proportional to 5,317.57, 7,974.33 and 1,618.66 is: 2,427.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.57 : 7,974.33 = 1,618.66 : x
  2. Step 2: Convert to fraction form
    5,317.57/7,974.33 = 1,618.66/x
  3. Step 3: Cross multiply
    5,317.57x = 7,974.33 × 1,618.66
  4. Step 4: Simplify right side
    5,317.57x = 12,907,729.00
  5. Step 5: Solve for x
    x = 12,907,729.00/5,317.57
  6. Step 6: Final answer
    x = 2,427.37

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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.