Home / 3,634.19-5,015.08-2,142.20

Finding the Fourth Proportional to 3,634.19, 5,015.08 and 2,142.20

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Solution

The fourth proportional to 3,634.19, 5,015.08 and 2,142.20 is: 2,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,634.19 : 5,015.08 = 2,142.20 : x
  2. Step 2: Convert to fraction form
    3,634.19/5,015.08 = 2,142.20/x
  3. Step 3: Cross multiply
    3,634.19x = 5,015.08 × 2,142.20
  4. Step 4: Simplify right side
    3,634.19x = 10,743,304.38
  5. Step 5: Solve for x
    x = 10,743,304.38/3,634.19
  6. Step 6: Final answer
    x = 2,956.18

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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.