Home / 1,144.33-1,579.19-620.37

Finding the Fourth Proportional to 1,144.33, 1,579.19 and 620.37

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Solution

The fourth proportional to 1,144.33, 1,579.19 and 620.37 is: 856.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.33 : 1,579.19 = 620.37 : x
  2. Step 2: Convert to fraction form
    1,144.33/1,579.19 = 620.37/x
  3. Step 3: Cross multiply
    1,144.33x = 1,579.19 × 620.37
  4. Step 4: Simplify right side
    1,144.33x = 979,682.10
  5. Step 5: Solve for x
    x = 979,682.10/1,144.33
  6. Step 6: Final answer
    x = 856.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.