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Finding the Fourth Proportional to 6,187.68, 9,279.69 and 1,803.77

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Solution

The fourth proportional to 6,187.68, 9,279.69 and 1,803.77 is: 2,705.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,187.68 : 9,279.69 = 1,803.77 : x
  2. Step 2: Convert to fraction form
    6,187.68/9,279.69 = 1,803.77/x
  3. Step 3: Cross multiply
    6,187.68x = 9,279.69 × 1,803.77
  4. Step 4: Simplify right side
    6,187.68x = 16,738,380.03
  5. Step 5: Solve for x
    x = 16,738,380.03/6,187.68
  6. Step 6: Final answer
    x = 2,705.11

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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.