Home / 3,018.35-4,527.76-1,961.76

Finding the Fourth Proportional to 3,018.35, 4,527.76 and 1,961.76

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Solution

The fourth proportional to 3,018.35, 4,527.76 and 1,961.76 is: 2,942.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.35 : 4,527.76 = 1,961.76 : x
  2. Step 2: Convert to fraction form
    3,018.35/4,527.76 = 1,961.76/x
  3. Step 3: Cross multiply
    3,018.35x = 4,527.76 × 1,961.76
  4. Step 4: Simplify right side
    3,018.35x = 8,882,373.55
  5. Step 5: Solve for x
    x = 8,882,373.55/3,018.35
  6. Step 6: Final answer
    x = 2,942.79

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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.