Home / 3,278.39-4,522.74-2,215.77

Finding the Fourth Proportional to 3,278.39, 4,522.74 and 2,215.77

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Solution

The fourth proportional to 3,278.39, 4,522.74 and 2,215.77 is: 3,056.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.39 : 4,522.74 = 2,215.77 : x
  2. Step 2: Convert to fraction form
    3,278.39/4,522.74 = 2,215.77/x
  3. Step 3: Cross multiply
    3,278.39x = 4,522.74 × 2,215.77
  4. Step 4: Simplify right side
    3,278.39x = 10,021,351.61
  5. Step 5: Solve for x
    x = 10,021,351.61/3,278.39
  6. Step 6: Final answer
    x = 3,056.79

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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.