Home / 6,601.32-9,109.80-3,947.76

Finding the Fourth Proportional to 6,601.32, 9,109.80 and 3,947.76

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Solution

The fourth proportional to 6,601.32, 9,109.80 and 3,947.76 is: 5,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.32 : 9,109.80 = 3,947.76 : x
  2. Step 2: Convert to fraction form
    6,601.32/9,109.80 = 3,947.76/x
  3. Step 3: Cross multiply
    6,601.32x = 9,109.80 × 3,947.76
  4. Step 4: Simplify right side
    6,601.32x = 35,963,304.05
  5. Step 5: Solve for x
    x = 35,963,304.05/6,601.32
  6. Step 6: Final answer
    x = 5,447.90

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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.