Home / 3,150.20-4,725.16-958.86

Finding the Fourth Proportional to 3,150.20, 4,725.16 and 958.86

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Solution

The fourth proportional to 3,150.20, 4,725.16 and 958.86 is: 1,438.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.20 : 4,725.16 = 958.86 : x
  2. Step 2: Convert to fraction form
    3,150.20/4,725.16 = 958.86/x
  3. Step 3: Cross multiply
    3,150.20x = 4,725.16 × 958.86
  4. Step 4: Simplify right side
    3,150.20x = 4,530,764.52
  5. Step 5: Solve for x
    x = 4,530,764.52/3,150.20
  6. Step 6: Final answer
    x = 1,438.25

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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.