Home / 3,880.29-5,820.62-1,107.16

Finding the Fourth Proportional to 3,880.29, 5,820.62 and 1,107.16

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Solution

The fourth proportional to 3,880.29, 5,820.62 and 1,107.16 is: 1,660.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.29 : 5,820.62 = 1,107.16 : x
  2. Step 2: Convert to fraction form
    3,880.29/5,820.62 = 1,107.16/x
  3. Step 3: Cross multiply
    3,880.29x = 5,820.62 × 1,107.16
  4. Step 4: Simplify right side
    3,880.29x = 6,444,357.64
  5. Step 5: Solve for x
    x = 6,444,357.64/3,880.29
  6. Step 6: Final answer
    x = 1,660.79

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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.