Home / 2,863.81-4,288.42-1,399.13

Finding the Fourth Proportional to 2,863.81, 4,288.42 and 1,399.13

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Solution

The fourth proportional to 2,863.81, 4,288.42 and 1,399.13 is: 2,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.81 : 4,288.42 = 1,399.13 : x
  2. Step 2: Convert to fraction form
    2,863.81/4,288.42 = 1,399.13/x
  3. Step 3: Cross multiply
    2,863.81x = 4,288.42 × 1,399.13
  4. Step 4: Simplify right side
    2,863.81x = 6,000,057.07
  5. Step 5: Solve for x
    x = 6,000,057.07/2,863.81
  6. Step 6: Final answer
    x = 2,095.13

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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.