Home / 3,639.24-5,458.83-1,788.69

Finding the Fourth Proportional to 3,639.24, 5,458.83 and 1,788.69

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Solution

The fourth proportional to 3,639.24, 5,458.83 and 1,788.69 is: 2,683.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.24 : 5,458.83 = 1,788.69 : x
  2. Step 2: Convert to fraction form
    3,639.24/5,458.83 = 1,788.69/x
  3. Step 3: Cross multiply
    3,639.24x = 5,458.83 × 1,788.69
  4. Step 4: Simplify right side
    3,639.24x = 9,764,154.63
  5. Step 5: Solve for x
    x = 9,764,154.63/3,639.24
  6. Step 6: Final answer
    x = 2,683.02

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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.