Home / 5,321.16-7,974.34-2,718.60

Finding the Fourth Proportional to 5,321.16, 7,974.34 and 2,718.60

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Solution

The fourth proportional to 5,321.16, 7,974.34 and 2,718.60 is: 4,074.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.16 : 7,974.34 = 2,718.60 : x
  2. Step 2: Convert to fraction form
    5,321.16/7,974.34 = 2,718.60/x
  3. Step 3: Cross multiply
    5,321.16x = 7,974.34 × 2,718.60
  4. Step 4: Simplify right side
    5,321.16x = 21,679,040.72
  5. Step 5: Solve for x
    x = 21,679,040.72/5,321.16
  6. Step 6: Final answer
    x = 4,074.12

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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.