Home / 3,861.75-5,329.23-2,290.14

Finding the Fourth Proportional to 3,861.75, 5,329.23 and 2,290.14

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Solution

The fourth proportional to 3,861.75, 5,329.23 and 2,290.14 is: 3,160.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.75 : 5,329.23 = 2,290.14 : x
  2. Step 2: Convert to fraction form
    3,861.75/5,329.23 = 2,290.14/x
  3. Step 3: Cross multiply
    3,861.75x = 5,329.23 × 2,290.14
  4. Step 4: Simplify right side
    3,861.75x = 12,204,682.79
  5. Step 5: Solve for x
    x = 12,204,682.79/3,861.75
  6. Step 6: Final answer
    x = 3,160.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.