Home / 6,289.56-8,680.38-3,636.95

Finding the Fourth Proportional to 6,289.56, 8,680.38 and 3,636.95

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Solution

The fourth proportional to 6,289.56, 8,680.38 and 3,636.95 is: 5,019.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.56 : 8,680.38 = 3,636.95 : x
  2. Step 2: Convert to fraction form
    6,289.56/8,680.38 = 3,636.95/x
  3. Step 3: Cross multiply
    6,289.56x = 8,680.38 × 3,636.95
  4. Step 4: Simplify right side
    6,289.56x = 31,570,104.94
  5. Step 5: Solve for x
    x = 31,570,104.94/6,289.56
  6. Step 6: Final answer
    x = 5,019.44

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1.5x scale

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.