Home / 3,378.24-5,078.88-2,656.53

Finding the Fourth Proportional to 3,378.24, 5,078.88 and 2,656.53

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Solution

The fourth proportional to 3,378.24, 5,078.88 and 2,656.53 is: 3,993.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.24 : 5,078.88 = 2,656.53 : x
  2. Step 2: Convert to fraction form
    3,378.24/5,078.88 = 2,656.53/x
  3. Step 3: Cross multiply
    3,378.24x = 5,078.88 × 2,656.53
  4. Step 4: Simplify right side
    3,378.24x = 13,492,197.09
  5. Step 5: Solve for x
    x = 13,492,197.09/3,378.24
  6. Step 6: Final answer
    x = 3,993.85

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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.