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Finding the Fourth Proportional to 6,450.30, 8,899.11 and 3,655.80

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Solution

The fourth proportional to 6,450.30, 8,899.11 and 3,655.80 is: 5,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,450.30 : 8,899.11 = 3,655.80 : x
  2. Step 2: Convert to fraction form
    6,450.30/8,899.11 = 3,655.80/x
  3. Step 3: Cross multiply
    6,450.30x = 8,899.11 × 3,655.80
  4. Step 4: Simplify right side
    6,450.30x = 32,533,366.34
  5. Step 5: Solve for x
    x = 32,533,366.34/6,450.30
  6. Step 6: Final answer
    x = 5,043.70

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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.