Home / 5,192.69-7,784.41-1,905.02

Finding the Fourth Proportional to 5,192.69, 7,784.41 and 1,905.02

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Solution

The fourth proportional to 5,192.69, 7,784.41 and 1,905.02 is: 2,855.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192.69 : 7,784.41 = 1,905.02 : x
  2. Step 2: Convert to fraction form
    5,192.69/7,784.41 = 1,905.02/x
  3. Step 3: Cross multiply
    5,192.69x = 7,784.41 × 1,905.02
  4. Step 4: Simplify right side
    5,192.69x = 14,829,471.44
  5. Step 5: Solve for x
    x = 14,829,471.44/5,192.69
  6. Step 6: Final answer
    x = 2,855.83

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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.