Home / 2,915.62-4,025.19-2,020.66

Finding the Fourth Proportional to 2,915.62, 4,025.19 and 2,020.66

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Solution

The fourth proportional to 2,915.62, 4,025.19 and 2,020.66 is: 2,789.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.62 : 4,025.19 = 2,020.66 : x
  2. Step 2: Convert to fraction form
    2,915.62/4,025.19 = 2,020.66/x
  3. Step 3: Cross multiply
    2,915.62x = 4,025.19 × 2,020.66
  4. Step 4: Simplify right side
    2,915.62x = 8,133,540.43
  5. Step 5: Solve for x
    x = 8,133,540.43/2,915.62
  6. Step 6: Final answer
    x = 2,789.64

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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.