Home / 3,508.41-5,266.38-3,120.90

Finding the Fourth Proportional to 3,508.41, 5,266.38 and 3,120.90

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Solution

The fourth proportional to 3,508.41, 5,266.38 and 3,120.90 is: 4,684.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.41 : 5,266.38 = 3,120.90 : x
  2. Step 2: Convert to fraction form
    3,508.41/5,266.38 = 3,120.90/x
  3. Step 3: Cross multiply
    3,508.41x = 5,266.38 × 3,120.90
  4. Step 4: Simplify right side
    3,508.41x = 16,435,837.30
  5. Step 5: Solve for x
    x = 16,435,837.30/3,508.41
  6. Step 6: Final answer
    x = 4,684.69

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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.