Home / 4,119.24-5,680.29-2,861.72

Finding the Fourth Proportional to 4,119.24, 5,680.29 and 2,861.72

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Solution

The fourth proportional to 4,119.24, 5,680.29 and 2,861.72 is: 3,946.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.24 : 5,680.29 = 2,861.72 : x
  2. Step 2: Convert to fraction form
    4,119.24/5,680.29 = 2,861.72/x
  3. Step 3: Cross multiply
    4,119.24x = 5,680.29 × 2,861.72
  4. Step 4: Simplify right side
    4,119.24x = 16,255,399.50
  5. Step 5: Solve for x
    x = 16,255,399.50/4,119.24
  6. Step 6: Final answer
    x = 3,946.21

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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.