Home / 3,679.20-5,077.17-2,106.99

Finding the Fourth Proportional to 3,679.20, 5,077.17 and 2,106.99

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Solution

The fourth proportional to 3,679.20, 5,077.17 and 2,106.99 is: 2,907.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.20 : 5,077.17 = 2,106.99 : x
  2. Step 2: Convert to fraction form
    3,679.20/5,077.17 = 2,106.99/x
  3. Step 3: Cross multiply
    3,679.20x = 5,077.17 × 2,106.99
  4. Step 4: Simplify right side
    3,679.20x = 10,697,546.42
  5. Step 5: Solve for x
    x = 10,697,546.42/3,679.20
  6. Step 6: Final answer
    x = 2,907.57

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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.