Home / 4,154.10-6,231.15-3,421.86

Finding the Fourth Proportional to 4,154.10, 6,231.15 and 3,421.86

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Solution

The fourth proportional to 4,154.10, 6,231.15 and 3,421.86 is: 5,132.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,154.10 : 6,231.15 = 3,421.86 : x
  2. Step 2: Convert to fraction form
    4,154.10/6,231.15 = 3,421.86/x
  3. Step 3: Cross multiply
    4,154.10x = 6,231.15 × 3,421.86
  4. Step 4: Simplify right side
    4,154.10x = 21,322,122.94
  5. Step 5: Solve for x
    x = 21,322,122.94/4,154.10
  6. Step 6: Final answer
    x = 5,132.79

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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.