Home / 6,289.11-8,680.19-4,164.68

Finding the Fourth Proportional to 6,289.11, 8,680.19 and 4,164.68

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Solution

The fourth proportional to 6,289.11, 8,680.19 and 4,164.68 is: 5,748.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.11 : 8,680.19 = 4,164.68 : x
  2. Step 2: Convert to fraction form
    6,289.11/8,680.19 = 4,164.68/x
  3. Step 3: Cross multiply
    6,289.11x = 8,680.19 × 4,164.68
  4. Step 4: Simplify right side
    6,289.11x = 36,150,214.57
  5. Step 5: Solve for x
    x = 36,150,214.57/6,289.11
  6. Step 6: Final answer
    x = 5,748.07

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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.