Home / 3,872.77-5,802.75-2,021.11

Finding the Fourth Proportional to 3,872.77, 5,802.75 and 2,021.11

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Solution

The fourth proportional to 3,872.77, 5,802.75 and 2,021.11 is: 3,028.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.77 : 5,802.75 = 2,021.11 : x
  2. Step 2: Convert to fraction form
    3,872.77/5,802.75 = 2,021.11/x
  3. Step 3: Cross multiply
    3,872.77x = 5,802.75 × 2,021.11
  4. Step 4: Simplify right side
    3,872.77x = 11,727,981.55
  5. Step 5: Solve for x
    x = 11,727,981.55/3,872.77
  6. Step 6: Final answer
    x = 3,028.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.