Home / 3,919.93-5,875.78-1,838.19

Finding the Fourth Proportional to 3,919.93, 5,875.78 and 1,838.19

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Solution

The fourth proportional to 3,919.93, 5,875.78 and 1,838.19 is: 2,755.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.93 : 5,875.78 = 1,838.19 : x
  2. Step 2: Convert to fraction form
    3,919.93/5,875.78 = 1,838.19/x
  3. Step 3: Cross multiply
    3,919.93x = 5,875.78 × 1,838.19
  4. Step 4: Simplify right side
    3,919.93x = 10,800,800.04
  5. Step 5: Solve for x
    x = 10,800,800.04/3,919.93
  6. Step 6: Final answer
    x = 2,755.36

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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.