Home / 3,279.86-4,516.53-2,930.42

Finding the Fourth Proportional to 3,279.86, 4,516.53 and 2,930.42

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Solution

The fourth proportional to 3,279.86, 4,516.53 and 2,930.42 is: 4,035.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.86 : 4,516.53 = 2,930.42 : x
  2. Step 2: Convert to fraction form
    3,279.86/4,516.53 = 2,930.42/x
  3. Step 3: Cross multiply
    3,279.86x = 4,516.53 × 2,930.42
  4. Step 4: Simplify right side
    3,279.86x = 13,235,329.84
  5. Step 5: Solve for x
    x = 13,235,329.84/3,279.86
  6. Step 6: Final answer
    x = 4,035.33

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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.