Home / 6,440.11-9,653.48-3,660.80

Finding the Fourth Proportional to 6,440.11, 9,653.48 and 3,660.80

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Solution

The fourth proportional to 6,440.11, 9,653.48 and 3,660.80 is: 5,487.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.11 : 9,653.48 = 3,660.80 : x
  2. Step 2: Convert to fraction form
    6,440.11/9,653.48 = 3,660.80/x
  3. Step 3: Cross multiply
    6,440.11x = 9,653.48 × 3,660.80
  4. Step 4: Simplify right side
    6,440.11x = 35,339,406.74
  5. Step 5: Solve for x
    x = 35,339,406.74/6,440.11
  6. Step 6: Final answer
    x = 5,487.39

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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.