Home / 1,550.15-2,325.62-439.57

Finding the Fourth Proportional to 1,550.15, 2,325.62 and 439.57

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Solution

The fourth proportional to 1,550.15, 2,325.62 and 439.57 is: 659.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.15 : 2,325.62 = 439.57 : x
  2. Step 2: Convert to fraction form
    1,550.15/2,325.62 = 439.57/x
  3. Step 3: Cross multiply
    1,550.15x = 2,325.62 × 439.57
  4. Step 4: Simplify right side
    1,550.15x = 1,022,272.78
  5. Step 5: Solve for x
    x = 1,022,272.78/1,550.15
  6. Step 6: Final answer
    x = 659.47

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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.