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Finding the Fourth Proportional to 3,891.39, 5,822.48 and 2,423.67

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Solution

The fourth proportional to 3,891.39, 5,822.48 and 2,423.67 is: 3,626.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.39 : 5,822.48 = 2,423.67 : x
  2. Step 2: Convert to fraction form
    3,891.39/5,822.48 = 2,423.67/x
  3. Step 3: Cross multiply
    3,891.39x = 5,822.48 × 2,423.67
  4. Step 4: Simplify right side
    3,891.39x = 14,111,757.98
  5. Step 5: Solve for x
    x = 14,111,757.98/3,891.39
  6. Step 6: Final answer
    x = 3,626.41

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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.