Home / 5,083.32-7,616.64-3,129.96

Finding the Fourth Proportional to 5,083.32, 7,616.64 and 3,129.96

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Solution

The fourth proportional to 5,083.32, 7,616.64 and 3,129.96 is: 4,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,083.32 : 7,616.64 = 3,129.96 : x
  2. Step 2: Convert to fraction form
    5,083.32/7,616.64 = 3,129.96/x
  3. Step 3: Cross multiply
    5,083.32x = 7,616.64 × 3,129.96
  4. Step 4: Simplify right side
    5,083.32x = 23,839,778.53
  5. Step 5: Solve for x
    x = 23,839,778.53/5,083.32
  6. Step 6: Final answer
    x = 4,689.80

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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.