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Finding the Fourth Proportional to 3,449.91, 4,697.19 and 3,438.99

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Solution

The fourth proportional to 3,449.91, 4,697.19 and 3,438.99 is: 4,682.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.91 : 4,697.19 = 3,438.99 : x
  2. Step 2: Convert to fraction form
    3,449.91/4,697.19 = 3,438.99/x
  3. Step 3: Cross multiply
    3,449.91x = 4,697.19 × 3,438.99
  4. Step 4: Simplify right side
    3,449.91x = 16,153,589.44
  5. Step 5: Solve for x
    x = 16,153,589.44/3,449.91
  6. Step 6: Final answer
    x = 4,682.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.