Home / 5,083.15-7,623.94-1,385.68

Finding the Fourth Proportional to 5,083.15, 7,623.94 and 1,385.68

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Solution

The fourth proportional to 5,083.15, 7,623.94 and 1,385.68 is: 2,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,083.15 : 7,623.94 = 1,385.68 : x
  2. Step 2: Convert to fraction form
    5,083.15/7,623.94 = 1,385.68/x
  3. Step 3: Cross multiply
    5,083.15x = 7,623.94 × 1,385.68
  4. Step 4: Simplify right side
    5,083.15x = 10,564,318.66
  5. Step 5: Solve for x
    x = 10,564,318.66/5,083.15
  6. Step 6: Final answer
    x = 2,078.30

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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.