Home / 6,540.54-9,021.33-4,020.90

Finding the Fourth Proportional to 6,540.54, 9,021.33 and 4,020.90

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Solution

The fourth proportional to 6,540.54, 9,021.33 and 4,020.90 is: 5,546.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,540.54 : 9,021.33 = 4,020.90 : x
  2. Step 2: Convert to fraction form
    6,540.54/9,021.33 = 4,020.90/x
  3. Step 3: Cross multiply
    6,540.54x = 9,021.33 × 4,020.90
  4. Step 4: Simplify right side
    6,540.54x = 36,273,865.80
  5. Step 5: Solve for x
    x = 36,273,865.80/6,540.54
  6. Step 6: Final answer
    x = 5,546.00

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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.