Home / 3,188.10-4,777.23-1,338.78

Finding the Fourth Proportional to 3,188.10, 4,777.23 and 1,338.78

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Solution

The fourth proportional to 3,188.10, 4,777.23 and 1,338.78 is: 2,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.10 : 4,777.23 = 1,338.78 : x
  2. Step 2: Convert to fraction form
    3,188.10/4,777.23 = 1,338.78/x
  3. Step 3: Cross multiply
    3,188.10x = 4,777.23 × 1,338.78
  4. Step 4: Simplify right side
    3,188.10x = 6,395,659.98
  5. Step 5: Solve for x
    x = 6,395,659.98/3,188.10
  6. Step 6: Final answer
    x = 2,006.10

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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.