Home / 3,285.60-4,930.52-2,115.48

Finding the Fourth Proportional to 3,285.60, 4,930.52 and 2,115.48

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Solution

The fourth proportional to 3,285.60, 4,930.52 and 2,115.48 is: 3,174.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.60 : 4,930.52 = 2,115.48 : x
  2. Step 2: Convert to fraction form
    3,285.60/4,930.52 = 2,115.48/x
  3. Step 3: Cross multiply
    3,285.60x = 4,930.52 × 2,115.48
  4. Step 4: Simplify right side
    3,285.60x = 10,430,416.45
  5. Step 5: Solve for x
    x = 10,430,416.45/3,285.60
  6. Step 6: Final answer
    x = 3,174.58

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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.