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Finding the Fourth Proportional to 5,855.09, 8,784.05 and 1,959.39

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Solution

The fourth proportional to 5,855.09, 8,784.05 and 1,959.39 is: 2,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.09 : 8,784.05 = 1,959.39 : x
  2. Step 2: Convert to fraction form
    5,855.09/8,784.05 = 1,959.39/x
  3. Step 3: Cross multiply
    5,855.09x = 8,784.05 × 1,959.39
  4. Step 4: Simplify right side
    5,855.09x = 17,211,369.93
  5. Step 5: Solve for x
    x = 17,211,369.93/5,855.09
  6. Step 6: Final answer
    x = 2,939.56

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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.