Home / 3,115.83-4,664.39-2,020.71

Finding the Fourth Proportional to 3,115.83, 4,664.39 and 2,020.71

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Solution

The fourth proportional to 3,115.83, 4,664.39 and 2,020.71 is: 3,024.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.83 : 4,664.39 = 2,020.71 : x
  2. Step 2: Convert to fraction form
    3,115.83/4,664.39 = 2,020.71/x
  3. Step 3: Cross multiply
    3,115.83x = 4,664.39 × 2,020.71
  4. Step 4: Simplify right side
    3,115.83x = 9,425,369.41
  5. Step 5: Solve for x
    x = 9,425,369.41/3,115.83
  6. Step 6: Final answer
    x = 3,024.99

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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.