Home / 3,908.84-5,859.66-1,311.08

Finding the Fourth Proportional to 3,908.84, 5,859.66 and 1,311.08

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Solution

The fourth proportional to 3,908.84, 5,859.66 and 1,311.08 is: 1,965.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.84 : 5,859.66 = 1,311.08 : x
  2. Step 2: Convert to fraction form
    3,908.84/5,859.66 = 1,311.08/x
  3. Step 3: Cross multiply
    3,908.84x = 5,859.66 × 1,311.08
  4. Step 4: Simplify right side
    3,908.84x = 7,682,483.03
  5. Step 5: Solve for x
    x = 7,682,483.03/3,908.84
  6. Step 6: Final answer
    x = 1,965.41

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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.