Home / 3,639.04-5,020.80-2,066.56

Finding the Fourth Proportional to 3,639.04, 5,020.80 and 2,066.56

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Solution

The fourth proportional to 3,639.04, 5,020.80 and 2,066.56 is: 2,851.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.04 : 5,020.80 = 2,066.56 : x
  2. Step 2: Convert to fraction form
    3,639.04/5,020.80 = 2,066.56/x
  3. Step 3: Cross multiply
    3,639.04x = 5,020.80 × 2,066.56
  4. Step 4: Simplify right side
    3,639.04x = 10,375,784.45
  5. Step 5: Solve for x
    x = 10,375,784.45/3,639.04
  6. Step 6: Final answer
    x = 2,851.24

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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.