Home / 6,640.20-9,966.46-3,355.60

Finding the Fourth Proportional to 6,640.20, 9,966.46 and 3,355.60

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Solution

The fourth proportional to 6,640.20, 9,966.46 and 3,355.60 is: 5,036.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.20 : 9,966.46 = 3,355.60 : x
  2. Step 2: Convert to fraction form
    6,640.20/9,966.46 = 3,355.60/x
  3. Step 3: Cross multiply
    6,640.20x = 9,966.46 × 3,355.60
  4. Step 4: Simplify right side
    6,640.20x = 33,443,458.72
  5. Step 5: Solve for x
    x = 33,443,458.72/6,640.20
  6. Step 6: Final answer
    x = 5,036.51

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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.