Home / 3,278.28-4,525.70-2,221.63

Finding the Fourth Proportional to 3,278.28, 4,525.70 and 2,221.63

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Solution

The fourth proportional to 3,278.28, 4,525.70 and 2,221.63 is: 3,066.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.28 : 4,525.70 = 2,221.63 : x
  2. Step 2: Convert to fraction form
    3,278.28/4,525.70 = 2,221.63/x
  3. Step 3: Cross multiply
    3,278.28x = 4,525.70 × 2,221.63
  4. Step 4: Simplify right side
    3,278.28x = 10,054,408.31
  5. Step 5: Solve for x
    x = 10,054,408.31/3,278.28
  6. Step 6: Final answer
    x = 3,066.98

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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.