Home / 3,422.35-5,135.81-1,862.75

Finding the Fourth Proportional to 3,422.35, 5,135.81 and 1,862.75

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Solution

The fourth proportional to 3,422.35, 5,135.81 and 1,862.75 is: 2,795.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.35 : 5,135.81 = 1,862.75 : x
  2. Step 2: Convert to fraction form
    3,422.35/5,135.81 = 1,862.75/x
  3. Step 3: Cross multiply
    3,422.35x = 5,135.81 × 1,862.75
  4. Step 4: Simplify right side
    3,422.35x = 9,566,704.71
  5. Step 5: Solve for x
    x = 9,566,704.71/3,422.35
  6. Step 6: Final answer
    x = 2,795.36

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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.