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Finding the Fourth Proportional to 5,015.86, 6,917.68 and 3,759.86

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Solution

The fourth proportional to 5,015.86, 6,917.68 and 3,759.86 is: 5,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.86 : 6,917.68 = 3,759.86 : x
  2. Step 2: Convert to fraction form
    5,015.86/6,917.68 = 3,759.86/x
  3. Step 3: Cross multiply
    5,015.86x = 6,917.68 × 3,759.86
  4. Step 4: Simplify right side
    5,015.86x = 26,009,508.32
  5. Step 5: Solve for x
    x = 26,009,508.32/5,015.86
  6. Step 6: Final answer
    x = 5,185.45

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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.