Home / 2,400.30-3,599.46-919.35

Finding the Fourth Proportional to 2,400.30, 3,599.46 and 919.35

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Solution

The fourth proportional to 2,400.30, 3,599.46 and 919.35 is: 1,378.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.30 : 3,599.46 = 919.35 : x
  2. Step 2: Convert to fraction form
    2,400.30/3,599.46 = 919.35/x
  3. Step 3: Cross multiply
    2,400.30x = 3,599.46 × 919.35
  4. Step 4: Simplify right side
    2,400.30x = 3,309,163.55
  5. Step 5: Solve for x
    x = 3,309,163.55/2,400.30
  6. Step 6: Final answer
    x = 1,378.65

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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.