Home / 1,150.32-1,724.44-419.38

Finding the Fourth Proportional to 1,150.32, 1,724.44 and 419.38

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Solution

The fourth proportional to 1,150.32, 1,724.44 and 419.38 is: 628.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.32 : 1,724.44 = 419.38 : x
  2. Step 2: Convert to fraction form
    1,150.32/1,724.44 = 419.38/x
  3. Step 3: Cross multiply
    1,150.32x = 1,724.44 × 419.38
  4. Step 4: Simplify right side
    1,150.32x = 723,194.60
  5. Step 5: Solve for x
    x = 723,194.60/1,150.32
  6. Step 6: Final answer
    x = 628.69

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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.