Home / 3,929.38-5,894.79-1,297.06

Finding the Fourth Proportional to 3,929.38, 5,894.79 and 1,297.06

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Solution

The fourth proportional to 3,929.38, 5,894.79 and 1,297.06 is: 1,945.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.38 : 5,894.79 = 1,297.06 : x
  2. Step 2: Convert to fraction form
    3,929.38/5,894.79 = 1,297.06/x
  3. Step 3: Cross multiply
    3,929.38x = 5,894.79 × 1,297.06
  4. Step 4: Simplify right side
    3,929.38x = 7,645,921.32
  5. Step 5: Solve for x
    x = 7,645,921.32/3,929.38
  6. Step 6: Final answer
    x = 1,945.84

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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.