Home / 2,027.05-3,040.58-640.49

Finding the Fourth Proportional to 2,027.05, 3,040.58 and 640.49

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Solution

The fourth proportional to 2,027.05, 3,040.58 and 640.49 is: 960.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.05 : 3,040.58 = 640.49 : x
  2. Step 2: Convert to fraction form
    2,027.05/3,040.58 = 640.49/x
  3. Step 3: Cross multiply
    2,027.05x = 3,040.58 × 640.49
  4. Step 4: Simplify right side
    2,027.05x = 1,947,461.08
  5. Step 5: Solve for x
    x = 1,947,461.08/2,027.05
  6. Step 6: Final answer
    x = 960.74

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1.5x scale

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.