Home / 4,145.55-6,218.90-1,512.71

Finding the Fourth Proportional to 4,145.55, 6,218.90 and 1,512.71

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Solution

The fourth proportional to 4,145.55, 6,218.90 and 1,512.71 is: 2,269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.55 : 6,218.90 = 1,512.71 : x
  2. Step 2: Convert to fraction form
    4,145.55/6,218.90 = 1,512.71/x
  3. Step 3: Cross multiply
    4,145.55x = 6,218.90 × 1,512.71
  4. Step 4: Simplify right side
    4,145.55x = 9,407,353.56
  5. Step 5: Solve for x
    x = 9,407,353.56/4,145.55
  6. Step 6: Final answer
    x = 2,269.27

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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.