Home / 4,115.59-6,170.89-1,613.78

Finding the Fourth Proportional to 4,115.59, 6,170.89 and 1,613.78

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Solution

The fourth proportional to 4,115.59, 6,170.89 and 1,613.78 is: 2,419.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.59 : 6,170.89 = 1,613.78 : x
  2. Step 2: Convert to fraction form
    4,115.59/6,170.89 = 1,613.78/x
  3. Step 3: Cross multiply
    4,115.59x = 6,170.89 × 1,613.78
  4. Step 4: Simplify right side
    4,115.59x = 9,958,464.06
  5. Step 5: Solve for x
    x = 9,958,464.06/4,115.59
  6. Step 6: Final answer
    x = 2,419.69

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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.