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Finding the Fourth Proportional to 3,000.40, 4,495.20 and 2,449.60

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Solution

The fourth proportional to 3,000.40, 4,495.20 and 2,449.60 is: 3,669.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.40 : 4,495.20 = 2,449.60 : x
  2. Step 2: Convert to fraction form
    3,000.40/4,495.20 = 2,449.60/x
  3. Step 3: Cross multiply
    3,000.40x = 4,495.20 × 2,449.60
  4. Step 4: Simplify right side
    3,000.40x = 11,011,441.92
  5. Step 5: Solve for x
    x = 11,011,441.92/3,000.40
  6. Step 6: Final answer
    x = 3,669.99

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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.