Home / 1,228.05-1,841.90-362.25

Finding the Fourth Proportional to 1,228.05, 1,841.90 and 362.25

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Solution

The fourth proportional to 1,228.05, 1,841.90 and 362.25 is: 543.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.05 : 1,841.90 = 362.25 : x
  2. Step 2: Convert to fraction form
    1,228.05/1,841.90 = 362.25/x
  3. Step 3: Cross multiply
    1,228.05x = 1,841.90 × 362.25
  4. Step 4: Simplify right side
    1,228.05x = 667,226.46
  5. Step 5: Solve for x
    x = 667,226.46/1,228.05
  6. Step 6: Final answer
    x = 543.32

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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.