Home / 3,864.47-5,794.28-1,399.24

Finding the Fourth Proportional to 3,864.47, 5,794.28 and 1,399.24

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Solution

The fourth proportional to 3,864.47, 5,794.28 and 1,399.24 is: 2,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.47 : 5,794.28 = 1,399.24 : x
  2. Step 2: Convert to fraction form
    3,864.47/5,794.28 = 1,399.24/x
  3. Step 3: Cross multiply
    3,864.47x = 5,794.28 × 1,399.24
  4. Step 4: Simplify right side
    3,864.47x = 8,107,552.38
  5. Step 5: Solve for x
    x = 8,107,552.38/3,864.47
  6. Step 6: Final answer
    x = 2,097.97

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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.