Home / 3,867.60-5,801.36-1,401.84

Finding the Fourth Proportional to 3,867.60, 5,801.36 and 1,401.84

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Solution

The fourth proportional to 3,867.60, 5,801.36 and 1,401.84 is: 2,102.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.60 : 5,801.36 = 1,401.84 : x
  2. Step 2: Convert to fraction form
    3,867.60/5,801.36 = 1,401.84/x
  3. Step 3: Cross multiply
    3,867.60x = 5,801.36 × 1,401.84
  4. Step 4: Simplify right side
    3,867.60x = 8,132,578.50
  5. Step 5: Solve for x
    x = 8,132,578.50/3,867.60
  6. Step 6: Final answer
    x = 2,102.75

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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.