Home / 3,772.20-5,659.96-1,308.76

Finding the Fourth Proportional to 3,772.20, 5,659.96 and 1,308.76

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Solution

The fourth proportional to 3,772.20, 5,659.96 and 1,308.76 is: 1,963.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.20 : 5,659.96 = 1,308.76 : x
  2. Step 2: Convert to fraction form
    3,772.20/5,659.96 = 1,308.76/x
  3. Step 3: Cross multiply
    3,772.20x = 5,659.96 × 1,308.76
  4. Step 4: Simplify right side
    3,772.20x = 7,407,529.25
  5. Step 5: Solve for x
    x = 7,407,529.25/3,772.20
  6. Step 6: Final answer
    x = 1,963.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.