Home / 4,119.75-5,680.98-2,862.23

Finding the Fourth Proportional to 4,119.75, 5,680.98 and 2,862.23

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Solution

The fourth proportional to 4,119.75, 5,680.98 and 2,862.23 is: 3,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.75 : 5,680.98 = 2,862.23 : x
  2. Step 2: Convert to fraction form
    4,119.75/5,680.98 = 2,862.23/x
  3. Step 3: Cross multiply
    4,119.75x = 5,680.98 × 2,862.23
  4. Step 4: Simplify right side
    4,119.75x = 16,260,242.98
  5. Step 5: Solve for x
    x = 16,260,242.98/4,119.75
  6. Step 6: Final answer
    x = 3,946.90

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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.