Home / 3,679.49-5,077.58-2,086.28

Finding the Fourth Proportional to 3,679.49, 5,077.58 and 2,086.28

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Solution

The fourth proportional to 3,679.49, 5,077.58 and 2,086.28 is: 2,879.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.49 : 5,077.58 = 2,086.28 : x
  2. Step 2: Convert to fraction form
    3,679.49/5,077.58 = 2,086.28/x
  3. Step 3: Cross multiply
    3,679.49x = 5,077.58 × 2,086.28
  4. Step 4: Simplify right side
    3,679.49x = 10,593,261.99
  5. Step 5: Solve for x
    x = 10,593,261.99/3,679.49
  6. Step 6: Final answer
    x = 2,879.01

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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.