Home / 5,078.24-7,603.64-3,318.88

Finding the Fourth Proportional to 5,078.24, 7,603.64 and 3,318.88

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Solution

The fourth proportional to 5,078.24, 7,603.64 and 3,318.88 is: 4,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.24 : 7,603.64 = 3,318.88 : x
  2. Step 2: Convert to fraction form
    5,078.24/7,603.64 = 3,318.88/x
  3. Step 3: Cross multiply
    5,078.24x = 7,603.64 × 3,318.88
  4. Step 4: Simplify right side
    5,078.24x = 25,235,568.72
  5. Step 5: Solve for x
    x = 25,235,568.72/5,078.24
  6. Step 6: Final answer
    x = 4,969.35

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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.