Home / 3,658.20-5,048.45-2,086.21

Finding the Fourth Proportional to 3,658.20, 5,048.45 and 2,086.21

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Solution

The fourth proportional to 3,658.20, 5,048.45 and 2,086.21 is: 2,879.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.20 : 5,048.45 = 2,086.21 : x
  2. Step 2: Convert to fraction form
    3,658.20/5,048.45 = 2,086.21/x
  3. Step 3: Cross multiply
    3,658.20x = 5,048.45 × 2,086.21
  4. Step 4: Simplify right side
    3,658.20x = 10,532,126.87
  5. Step 5: Solve for x
    x = 10,532,126.87/3,658.20
  6. Step 6: Final answer
    x = 2,879.05

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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.