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Finding the Fourth Proportional to 5,083.86, 7,015.85 and 2,845.72

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Solution

The fourth proportional to 5,083.86, 7,015.85 and 2,845.72 is: 3,927.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,083.86 : 7,015.85 = 2,845.72 : x
  2. Step 2: Convert to fraction form
    5,083.86/7,015.85 = 2,845.72/x
  3. Step 3: Cross multiply
    5,083.86x = 7,015.85 × 2,845.72
  4. Step 4: Simplify right side
    5,083.86x = 19,965,134.24
  5. Step 5: Solve for x
    x = 19,965,134.24/5,083.86
  6. Step 6: Final answer
    x = 3,927.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.