Home / 3,947.50-5,447.93-2,951.07

Finding the Fourth Proportional to 3,947.50, 5,447.93 and 2,951.07

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Solution

The fourth proportional to 3,947.50, 5,447.93 and 2,951.07 is: 4,072.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.50 : 5,447.93 = 2,951.07 : x
  2. Step 2: Convert to fraction form
    3,947.50/5,447.93 = 2,951.07/x
  3. Step 3: Cross multiply
    3,947.50x = 5,447.93 × 2,951.07
  4. Step 4: Simplify right side
    3,947.50x = 16,077,187.60
  5. Step 5: Solve for x
    x = 16,077,187.60/3,947.50
  6. Step 6: Final answer
    x = 4,072.75

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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.