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Finding the Fourth Proportional to 6,409.80, 8,846.10 and 3,755.88

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Solution

The fourth proportional to 6,409.80, 8,846.10 and 3,755.88 is: 5,183.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409.80 : 8,846.10 = 3,755.88 : x
  2. Step 2: Convert to fraction form
    6,409.80/8,846.10 = 3,755.88/x
  3. Step 3: Cross multiply
    6,409.80x = 8,846.10 × 3,755.88
  4. Step 4: Simplify right side
    6,409.80x = 33,224,890.07
  5. Step 5: Solve for x
    x = 33,224,890.07/6,409.80
  6. Step 6: Final answer
    x = 5,183.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.