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Finding the Fourth Proportional to 3,909.37, 5,395.54 and 2,493.67

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Solution

The fourth proportional to 3,909.37, 5,395.54 and 2,493.67 is: 3,441.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.37 : 5,395.54 = 2,493.67 : x
  2. Step 2: Convert to fraction form
    3,909.37/5,395.54 = 2,493.67/x
  3. Step 3: Cross multiply
    3,909.37x = 5,395.54 × 2,493.67
  4. Step 4: Simplify right side
    3,909.37x = 13,454,696.23
  5. Step 5: Solve for x
    x = 13,454,696.23/3,909.37
  6. Step 6: Final answer
    x = 3,441.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.