Home / 3,334.28-5,000.36-1,386

Finding the Fourth Proportional to 3,334.28, 5,000.36 and 1,386

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Solution

The fourth proportional to 3,334.28, 5,000.36 and 1,386 is: 2,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,334.28 : 5,000.36 = 1,386 : x
  2. Step 2: Convert to fraction form
    3,334.28/5,000.36 = 1,386/x
  3. Step 3: Cross multiply
    3,334.28x = 5,000.36 × 1,386
  4. Step 4: Simplify right side
    3,334.28x = 6,930,492.03
  5. Step 5: Solve for x
    x = 6,930,492.03/3,334.28
  6. Step 6: Final answer
    x = 2,078.56

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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.