Home / 3,906.15-5,859.27-1,309.08

Finding the Fourth Proportional to 3,906.15, 5,859.27 and 1,309.08

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Solution

The fourth proportional to 3,906.15, 5,859.27 and 1,309.08 is: 1,963.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.15 : 5,859.27 = 1,309.08 : x
  2. Step 2: Convert to fraction form
    3,906.15/5,859.27 = 1,309.08/x
  3. Step 3: Cross multiply
    3,906.15x = 5,859.27 × 1,309.08
  4. Step 4: Simplify right side
    3,906.15x = 7,670,253.17
  5. Step 5: Solve for x
    x = 7,670,253.17/3,906.15
  6. Step 6: Final answer
    x = 1,963.64

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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.