Home / 3,917.75-5,861.79-2,417.12

Finding the Fourth Proportional to 3,917.75, 5,861.79 and 2,417.12

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Solution

The fourth proportional to 3,917.75, 5,861.79 and 2,417.12 is: 3,616.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.75 : 5,861.79 = 2,417.12 : x
  2. Step 2: Convert to fraction form
    3,917.75/5,861.79 = 2,417.12/x
  3. Step 3: Cross multiply
    3,917.75x = 5,861.79 × 2,417.12
  4. Step 4: Simplify right side
    3,917.75x = 14,168,651.13
  5. Step 5: Solve for x
    x = 14,168,651.13/3,917.75
  6. Step 6: Final answer
    x = 3,616.53

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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.