Home / 3,876.60-5,812.47-2,028.32

Finding the Fourth Proportional to 3,876.60, 5,812.47 and 2,028.32

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Solution

The fourth proportional to 3,876.60, 5,812.47 and 2,028.32 is: 3,041.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.60 : 5,812.47 = 2,028.32 : x
  2. Step 2: Convert to fraction form
    3,876.60/5,812.47 = 2,028.32/x
  3. Step 3: Cross multiply
    3,876.60x = 5,812.47 × 2,028.32
  4. Step 4: Simplify right side
    3,876.60x = 11,789,549.15
  5. Step 5: Solve for x
    x = 11,789,549.15/3,876.60
  6. Step 6: Final answer
    x = 3,041.21

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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.