Home / 4,186.35-6,279.38-1,688.61

Finding the Fourth Proportional to 4,186.35, 6,279.38 and 1,688.61

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Solution

The fourth proportional to 4,186.35, 6,279.38 and 1,688.61 is: 2,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.35 : 6,279.38 = 1,688.61 : x
  2. Step 2: Convert to fraction form
    4,186.35/6,279.38 = 1,688.61/x
  3. Step 3: Cross multiply
    4,186.35x = 6,279.38 × 1,688.61
  4. Step 4: Simplify right side
    4,186.35x = 10,603,415.42
  5. Step 5: Solve for x
    x = 10,603,415.42/4,186.35
  6. Step 6: Final answer
    x = 2,532.85

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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.