Home / 3,512.99-4,847.90-2,021.19

Finding the Fourth Proportional to 3,512.99, 4,847.90 and 2,021.19

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Solution

The fourth proportional to 3,512.99, 4,847.90 and 2,021.19 is: 2,789.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.99 : 4,847.90 = 2,021.19 : x
  2. Step 2: Convert to fraction form
    3,512.99/4,847.90 = 2,021.19/x
  3. Step 3: Cross multiply
    3,512.99x = 4,847.90 × 2,021.19
  4. Step 4: Simplify right side
    3,512.99x = 9,798,516.90
  5. Step 5: Solve for x
    x = 9,798,516.90/3,512.99
  6. Step 6: Final answer
    x = 2,789.23

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Half scale
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Double scale
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1.5x scale

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.