Home / 2,026.67-3,040.40-640.13

Finding the Fourth Proportional to 2,026.67, 3,040.40 and 640.13

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Solution

The fourth proportional to 2,026.67, 3,040.40 and 640.13 is: 960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,026.67 : 3,040.40 = 640.13 : x
  2. Step 2: Convert to fraction form
    2,026.67/3,040.40 = 640.13/x
  3. Step 3: Cross multiply
    2,026.67x = 3,040.40 × 640.13
  4. Step 4: Simplify right side
    2,026.67x = 1,946,232.85
  5. Step 5: Solve for x
    x = 1,946,232.85/2,026.67
  6. Step 6: Final answer
    x = 960.31

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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.