Home / 2,026.68-3,040.49-640.16

Finding the Fourth Proportional to 2,026.68, 3,040.49 and 640.16

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Solution

The fourth proportional to 2,026.68, 3,040.49 and 640.16 is: 960.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,026.68 : 3,040.49 = 640.16 : x
  2. Step 2: Convert to fraction form
    2,026.68/3,040.49 = 640.16/x
  3. Step 3: Cross multiply
    2,026.68x = 3,040.49 × 640.16
  4. Step 4: Simplify right side
    2,026.68x = 1,946,384.88
  5. Step 5: Solve for x
    x = 1,946,384.88/2,026.68
  6. Step 6: Final answer
    x = 960.38

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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.