Home / 3,269.86-4,513.12-2,150.90

Finding the Fourth Proportional to 3,269.86, 4,513.12 and 2,150.90

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Solution

The fourth proportional to 3,269.86, 4,513.12 and 2,150.90 is: 2,968.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269.86 : 4,513.12 = 2,150.90 : x
  2. Step 2: Convert to fraction form
    3,269.86/4,513.12 = 2,150.90/x
  3. Step 3: Cross multiply
    3,269.86x = 4,513.12 × 2,150.90
  4. Step 4: Simplify right side
    3,269.86x = 9,707,269.81
  5. Step 5: Solve for x
    x = 9,707,269.81/3,269.86
  6. Step 6: Final answer
    x = 2,968.71

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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.