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Finding the Fourth Proportional to 3,679.94, 5,079.79 and 2,264.20

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Solution

The fourth proportional to 3,679.94, 5,079.79 and 2,264.20 is: 3,125.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.94 : 5,079.79 = 2,264.20 : x
  2. Step 2: Convert to fraction form
    3,679.94/5,079.79 = 2,264.20/x
  3. Step 3: Cross multiply
    3,679.94x = 5,079.79 × 2,264.20
  4. Step 4: Simplify right side
    3,679.94x = 11,501,679.22
  5. Step 5: Solve for x
    x = 11,501,679.22/3,679.94
  6. Step 6: Final answer
    x = 3,125.51

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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.