Home / 3,191.12-4,777.80-2,408.76

Finding the Fourth Proportional to 3,191.12, 4,777.80 and 2,408.76

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Solution

The fourth proportional to 3,191.12, 4,777.80 and 2,408.76 is: 3,606.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.12 : 4,777.80 = 2,408.76 : x
  2. Step 2: Convert to fraction form
    3,191.12/4,777.80 = 2,408.76/x
  3. Step 3: Cross multiply
    3,191.12x = 4,777.80 × 2,408.76
  4. Step 4: Simplify right side
    3,191.12x = 11,508,573.53
  5. Step 5: Solve for x
    x = 11,508,573.53/3,191.12
  6. Step 6: Final answer
    x = 3,606.44

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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.