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Finding the Fourth Proportional to 8,900.80, 13,350.72 and 3,057.44

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Solution

The fourth proportional to 8,900.80, 13,350.72 and 3,057.44 is: 4,586.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.80 : 13,350.72 = 3,057.44 : x
  2. Step 2: Convert to fraction form
    8,900.80/13,350.72 = 3,057.44/x
  3. Step 3: Cross multiply
    8,900.80x = 13,350.72 × 3,057.44
  4. Step 4: Simplify right side
    8,900.80x = 40,819,025.36
  5. Step 5: Solve for x
    x = 40,819,025.36/8,900.80
  6. Step 6: Final answer
    x = 4,586.00

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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.