Home / 3,931.32-5,878.74-3,195.02

Finding the Fourth Proportional to 3,931.32, 5,878.74 and 3,195.02

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Solution

The fourth proportional to 3,931.32, 5,878.74 and 3,195.02 is: 4,777.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.32 : 5,878.74 = 3,195.02 : x
  2. Step 2: Convert to fraction form
    3,931.32/5,878.74 = 3,195.02/x
  3. Step 3: Cross multiply
    3,931.32x = 5,878.74 × 3,195.02
  4. Step 4: Simplify right side
    3,931.32x = 18,782,691.87
  5. Step 5: Solve for x
    x = 18,782,691.87/3,931.32
  6. Step 6: Final answer
    x = 4,777.71

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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.