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Finding the Fourth Proportional to 5,855.02, 8,780.68 and 1,958.52

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Solution

The fourth proportional to 5,855.02, 8,780.68 and 1,958.52 is: 2,937.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.02 : 8,780.68 = 1,958.52 : x
  2. Step 2: Convert to fraction form
    5,855.02/8,780.68 = 1,958.52/x
  3. Step 3: Cross multiply
    5,855.02x = 8,780.68 × 1,958.52
  4. Step 4: Simplify right side
    5,855.02x = 17,197,137.39
  5. Step 5: Solve for x
    x = 17,197,137.39/5,855.02
  6. Step 6: Final answer
    x = 2,937.16

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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.