Home / 5,316.06-7,974.48-1,618.56

Finding the Fourth Proportional to 5,316.06, 7,974.48 and 1,618.56

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Solution

The fourth proportional to 5,316.06, 7,974.48 and 1,618.56 is: 2,427.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.06 : 7,974.48 = 1,618.56 : x
  2. Step 2: Convert to fraction form
    5,316.06/7,974.48 = 1,618.56/x
  3. Step 3: Cross multiply
    5,316.06x = 7,974.48 × 1,618.56
  4. Step 4: Simplify right side
    5,316.06x = 12,907,174.35
  5. Step 5: Solve for x
    x = 12,907,174.35/5,316.06
  6. Step 6: Final answer
    x = 2,427.96

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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.