Home / 2,154.12-3,223.10-1,273.38

Finding the Fourth Proportional to 2,154.12, 3,223.10 and 1,273.38

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Solution

The fourth proportional to 2,154.12, 3,223.10 and 1,273.38 is: 1,905.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.12 : 3,223.10 = 1,273.38 : x
  2. Step 2: Convert to fraction form
    2,154.12/3,223.10 = 1,273.38/x
  3. Step 3: Cross multiply
    2,154.12x = 3,223.10 × 1,273.38
  4. Step 4: Simplify right side
    2,154.12x = 4,104,231.08
  5. Step 5: Solve for x
    x = 4,104,231.08/2,154.12
  6. Step 6: Final answer
    x = 1,905.29

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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.