Home / 4,947.86-6,836.66-3,893.98

Finding the Fourth Proportional to 4,947.86, 6,836.66 and 3,893.98

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Solution

The fourth proportional to 4,947.86, 6,836.66 and 3,893.98 is: 5,380.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.86 : 6,836.66 = 3,893.98 : x
  2. Step 2: Convert to fraction form
    4,947.86/6,836.66 = 3,893.98/x
  3. Step 3: Cross multiply
    4,947.86x = 6,836.66 × 3,893.98
  4. Step 4: Simplify right side
    4,947.86x = 26,621,817.31
  5. Step 5: Solve for x
    x = 26,621,817.31/4,947.86
  6. Step 6: Final answer
    x = 5,380.47

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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.