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Finding the Fourth Proportional to 3,906.10, 5,859.93 and 1,440.93

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Solution

The fourth proportional to 3,906.10, 5,859.93 and 1,440.93 is: 2,161.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.10 : 5,859.93 = 1,440.93 : x
  2. Step 2: Convert to fraction form
    3,906.10/5,859.93 = 1,440.93/x
  3. Step 3: Cross multiply
    3,906.10x = 5,859.93 × 1,440.93
  4. Step 4: Simplify right side
    3,906.10x = 8,443,748.93
  5. Step 5: Solve for x
    x = 8,443,748.93/3,906.10
  6. Step 6: Final answer
    x = 2,161.68

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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.