Home / 3,309.70-4,968.60-3,285.40

Finding the Fourth Proportional to 3,309.70, 4,968.60 and 3,285.40

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Solution

The fourth proportional to 3,309.70, 4,968.60 and 3,285.40 is: 4,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.70 : 4,968.60 = 3,285.40 : x
  2. Step 2: Convert to fraction form
    3,309.70/4,968.60 = 3,285.40/x
  3. Step 3: Cross multiply
    3,309.70x = 4,968.60 × 3,285.40
  4. Step 4: Simplify right side
    3,309.70x = 16,323,838.44
  5. Step 5: Solve for x
    x = 16,323,838.44/3,309.70
  6. Step 6: Final answer
    x = 4,932.12

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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.