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Finding the Fourth Proportional to 3,406.05, 4,720.07 and 3,340.44

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Solution

The fourth proportional to 3,406.05, 4,720.07 and 3,340.44 is: 4,629.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.05 : 4,720.07 = 3,340.44 : x
  2. Step 2: Convert to fraction form
    3,406.05/4,720.07 = 3,340.44/x
  3. Step 3: Cross multiply
    3,406.05x = 4,720.07 × 3,340.44
  4. Step 4: Simplify right side
    3,406.05x = 15,767,118.98
  5. Step 5: Solve for x
    x = 15,767,118.98/3,406.05
  6. Step 6: Final answer
    x = 4,629.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.