Home / 3,639.87-5,455.24-1,557.44

Finding the Fourth Proportional to 3,639.87, 5,455.24 and 1,557.44

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Solution

The fourth proportional to 3,639.87, 5,455.24 and 1,557.44 is: 2,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.87 : 5,455.24 = 1,557.44 : x
  2. Step 2: Convert to fraction form
    3,639.87/5,455.24 = 1,557.44/x
  3. Step 3: Cross multiply
    3,639.87x = 5,455.24 × 1,557.44
  4. Step 4: Simplify right side
    3,639.87x = 8,496,208.99
  5. Step 5: Solve for x
    x = 8,496,208.99/3,639.87
  6. Step 6: Final answer
    x = 2,334.21

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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.