Home / 3,278.58-4,916-2,239.86

Finding the Fourth Proportional to 3,278.58, 4,916 and 2,239.86

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Solution

The fourth proportional to 3,278.58, 4,916 and 2,239.86 is: 3,358.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.58 : 4,916 = 2,239.86 : x
  2. Step 2: Convert to fraction form
    3,278.58/4,916 = 2,239.86/x
  3. Step 3: Cross multiply
    3,278.58x = 4,916 × 2,239.86
  4. Step 4: Simplify right side
    3,278.58x = 11,011,151.76
  5. Step 5: Solve for x
    x = 11,011,151.76/3,278.58
  6. Step 6: Final answer
    x = 3,358.51

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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.