Home / 1,150.14-1,725.39-380.64

Finding the Fourth Proportional to 1,150.14, 1,725.39 and 380.64

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Solution

The fourth proportional to 1,150.14, 1,725.39 and 380.64 is: 571.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.14 : 1,725.39 = 380.64 : x
  2. Step 2: Convert to fraction form
    1,150.14/1,725.39 = 380.64/x
  3. Step 3: Cross multiply
    1,150.14x = 1,725.39 × 380.64
  4. Step 4: Simplify right side
    1,150.14x = 656,752.45
  5. Step 5: Solve for x
    x = 656,752.45/1,150.14
  6. Step 6: Final answer
    x = 571.02

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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.