Home / 5,384.84-8,080.90-2,789.60

Finding the Fourth Proportional to 5,384.84, 8,080.90 and 2,789.60

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Solution

The fourth proportional to 5,384.84, 8,080.90 and 2,789.60 is: 4,186.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.84 : 8,080.90 = 2,789.60 : x
  2. Step 2: Convert to fraction form
    5,384.84/8,080.90 = 2,789.60/x
  3. Step 3: Cross multiply
    5,384.84x = 8,080.90 × 2,789.60
  4. Step 4: Simplify right side
    5,384.84x = 22,542,478.64
  5. Step 5: Solve for x
    x = 22,542,478.64/5,384.84
  6. Step 6: Final answer
    x = 4,186.29

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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.