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Finding the Fourth Proportional to 5,855.56, 8,784.78 and 2,345.80

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Solution

The fourth proportional to 5,855.56, 8,784.78 and 2,345.80 is: 3,519.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.56 : 8,784.78 = 2,345.80 : x
  2. Step 2: Convert to fraction form
    5,855.56/8,784.78 = 2,345.80/x
  3. Step 3: Cross multiply
    5,855.56x = 8,784.78 × 2,345.80
  4. Step 4: Simplify right side
    5,855.56x = 20,607,336.92
  5. Step 5: Solve for x
    x = 20,607,336.92/5,855.56
  6. Step 6: Final answer
    x = 3,519.28

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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.