Home / 3,939.09-5,908.64-3,698.52

Finding the Fourth Proportional to 3,939.09, 5,908.64 and 3,698.52

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Solution

The fourth proportional to 3,939.09, 5,908.64 and 3,698.52 is: 5,547.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.09 : 5,908.64 = 3,698.52 : x
  2. Step 2: Convert to fraction form
    3,939.09/5,908.64 = 3,698.52/x
  3. Step 3: Cross multiply
    3,939.09x = 5,908.64 × 3,698.52
  4. Step 4: Simplify right side
    3,939.09x = 21,853,175.18
  5. Step 5: Solve for x
    x = 21,853,175.18/3,939.09
  6. Step 6: Final answer
    x = 5,547.78

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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.