Home / 2,027.13-3,040.80-640.51

Finding the Fourth Proportional to 2,027.13, 3,040.80 and 640.51

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Solution

The fourth proportional to 2,027.13, 3,040.80 and 640.51 is: 960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.13 : 3,040.80 = 640.51 : x
  2. Step 2: Convert to fraction form
    2,027.13/3,040.80 = 640.51/x
  3. Step 3: Cross multiply
    2,027.13x = 3,040.80 × 640.51
  4. Step 4: Simplify right side
    2,027.13x = 1,947,662.81
  5. Step 5: Solve for x
    x = 1,947,662.81/2,027.13
  6. Step 6: Final answer
    x = 960.80

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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.