Home / 3,679.53-5,077.80-2,107.68

Finding the Fourth Proportional to 3,679.53, 5,077.80 and 2,107.68

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Solution

The fourth proportional to 3,679.53, 5,077.80 and 2,107.68 is: 2,908.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.53 : 5,077.80 = 2,107.68 : x
  2. Step 2: Convert to fraction form
    3,679.53/5,077.80 = 2,107.68/x
  3. Step 3: Cross multiply
    3,679.53x = 5,077.80 × 2,107.68
  4. Step 4: Simplify right side
    3,679.53x = 10,702,377.50
  5. Step 5: Solve for x
    x = 10,702,377.50/3,679.53
  6. Step 6: Final answer
    x = 2,908.63

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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.