Home / 3,887.75-5,829.40-1,423.33

Finding the Fourth Proportional to 3,887.75, 5,829.40 and 1,423.33

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Solution

The fourth proportional to 3,887.75, 5,829.40 and 1,423.33 is: 2,134.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.75 : 5,829.40 = 1,423.33 : x
  2. Step 2: Convert to fraction form
    3,887.75/5,829.40 = 1,423.33/x
  3. Step 3: Cross multiply
    3,887.75x = 5,829.40 × 1,423.33
  4. Step 4: Simplify right side
    3,887.75x = 8,297,147.11
  5. Step 5: Solve for x
    x = 8,297,147.11/3,887.75
  6. Step 6: Final answer
    x = 2,134.18

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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.