Home / 3,680.24-5,079.45-2,086.91

Finding the Fourth Proportional to 3,680.24, 5,079.45 and 2,086.91

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Solution

The fourth proportional to 3,680.24, 5,079.45 and 2,086.91 is: 2,880.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.24 : 5,079.45 = 2,086.91 : x
  2. Step 2: Convert to fraction form
    3,680.24/5,079.45 = 2,086.91/x
  3. Step 3: Cross multiply
    3,680.24x = 5,079.45 × 2,086.91
  4. Step 4: Simplify right side
    3,680.24x = 10,600,367.70
  5. Step 5: Solve for x
    x = 10,600,367.70/3,680.24
  6. Step 6: Final answer
    x = 2,880.35

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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.