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Finding the Fourth Proportional to 3,398.72, 5,099.43 and 1,550.70

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Solution

The fourth proportional to 3,398.72, 5,099.43 and 1,550.70 is: 2,326.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.72 : 5,099.43 = 1,550.70 : x
  2. Step 2: Convert to fraction form
    3,398.72/5,099.43 = 1,550.70/x
  3. Step 3: Cross multiply
    3,398.72x = 5,099.43 × 1,550.70
  4. Step 4: Simplify right side
    3,398.72x = 7,907,686.10
  5. Step 5: Solve for x
    x = 7,907,686.10/3,398.72
  6. Step 6: Final answer
    x = 2,326.67

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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.