Home / 6,399.45-8,829.69-3,604.95

Finding the Fourth Proportional to 6,399.45, 8,829.69 and 3,604.95

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Solution

The fourth proportional to 6,399.45, 8,829.69 and 3,604.95 is: 4,973.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.45 : 8,829.69 = 3,604.95 : x
  2. Step 2: Convert to fraction form
    6,399.45/8,829.69 = 3,604.95/x
  3. Step 3: Cross multiply
    6,399.45x = 8,829.69 × 3,604.95
  4. Step 4: Simplify right side
    6,399.45x = 31,830,590.97
  5. Step 5: Solve for x
    x = 31,830,590.97/6,399.45
  6. Step 6: Final answer
    x = 4,973.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.