Home / 3,698.38-5,538.84-1,939.18

Finding the Fourth Proportional to 3,698.38, 5,538.84 and 1,939.18

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Solution

The fourth proportional to 3,698.38, 5,538.84 and 1,939.18 is: 2,904.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.38 : 5,538.84 = 1,939.18 : x
  2. Step 2: Convert to fraction form
    3,698.38/5,538.84 = 1,939.18/x
  3. Step 3: Cross multiply
    3,698.38x = 5,538.84 × 1,939.18
  4. Step 4: Simplify right side
    3,698.38x = 10,740,807.75
  5. Step 5: Solve for x
    x = 10,740,807.75/3,698.38
  6. Step 6: Final answer
    x = 2,904.19

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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.