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Finding the Fourth Proportional to 6,289.92, 9,434.90 and 2,129.96

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Solution

The fourth proportional to 6,289.92, 9,434.90 and 2,129.96 is: 3,194.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.92 : 9,434.90 = 2,129.96 : x
  2. Step 2: Convert to fraction form
    6,289.92/9,434.90 = 2,129.96/x
  3. Step 3: Cross multiply
    6,289.92x = 9,434.90 × 2,129.96
  4. Step 4: Simplify right side
    6,289.92x = 20,095,988.52
  5. Step 5: Solve for x
    x = 20,095,988.52/6,289.92
  6. Step 6: Final answer
    x = 3,194.95

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1.5x scale

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.