Home / 4,358.20-6,540.90-2,021.80

Finding the Fourth Proportional to 4,358.20, 6,540.90 and 2,021.80

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Solution

The fourth proportional to 4,358.20, 6,540.90 and 2,021.80 is: 3,034.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,358.20 : 6,540.90 = 2,021.80 : x
  2. Step 2: Convert to fraction form
    4,358.20/6,540.90 = 2,021.80/x
  3. Step 3: Cross multiply
    4,358.20x = 6,540.90 × 2,021.80
  4. Step 4: Simplify right side
    4,358.20x = 13,224,391.62
  5. Step 5: Solve for x
    x = 13,224,391.62/4,358.20
  6. Step 6: Final answer
    x = 3,034.37

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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.