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Finding the Fourth Proportional to 8,694.40, 13,041.60 and 2,849.60

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Solution

The fourth proportional to 8,694.40, 13,041.60 and 2,849.60 is: 4,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.40 : 13,041.60 = 2,849.60 : x
  2. Step 2: Convert to fraction form
    8,694.40/13,041.60 = 2,849.60/x
  3. Step 3: Cross multiply
    8,694.40x = 13,041.60 × 2,849.60
  4. Step 4: Simplify right side
    8,694.40x = 37,163,343.36
  5. Step 5: Solve for x
    x = 37,163,343.36/8,694.40
  6. Step 6: Final answer
    x = 4,274.40

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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.