Home / 3,860.64-5,790.04-1,087.56

Finding the Fourth Proportional to 3,860.64, 5,790.04 and 1,087.56

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Solution

The fourth proportional to 3,860.64, 5,790.04 and 1,087.56 is: 1,631.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.64 : 5,790.04 = 1,087.56 : x
  2. Step 2: Convert to fraction form
    3,860.64/5,790.04 = 1,087.56/x
  3. Step 3: Cross multiply
    3,860.64x = 5,790.04 × 1,087.56
  4. Step 4: Simplify right side
    3,860.64x = 6,297,015.90
  5. Step 5: Solve for x
    x = 6,297,015.90/3,860.64
  6. Step 6: Final answer
    x = 1,631.08

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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.