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Finding the Fourth Proportional to 3,908.39, 5,859.14 and 1,715.45

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Solution

The fourth proportional to 3,908.39, 5,859.14 and 1,715.45 is: 2,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.39 : 5,859.14 = 1,715.45 : x
  2. Step 2: Convert to fraction form
    3,908.39/5,859.14 = 1,715.45/x
  3. Step 3: Cross multiply
    3,908.39x = 5,859.14 × 1,715.45
  4. Step 4: Simplify right side
    3,908.39x = 10,051,023.84
  5. Step 5: Solve for x
    x = 10,051,023.84/3,908.39
  6. Step 6: Final answer
    x = 2,571.66

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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.