Home / 3,976.32-5,965.09-1,307.07

Finding the Fourth Proportional to 3,976.32, 5,965.09 and 1,307.07

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Solution

The fourth proportional to 3,976.32, 5,965.09 and 1,307.07 is: 1,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.32 : 5,965.09 = 1,307.07 : x
  2. Step 2: Convert to fraction form
    3,976.32/5,965.09 = 1,307.07/x
  3. Step 3: Cross multiply
    3,976.32x = 5,965.09 × 1,307.07
  4. Step 4: Simplify right side
    3,976.32x = 7,796,790.19
  5. Step 5: Solve for x
    x = 7,796,790.19/3,976.32
  6. Step 6: Final answer
    x = 1,960.81

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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.