Home / 4,211.46-6,316.68-1,289.80

Finding the Fourth Proportional to 4,211.46, 6,316.68 and 1,289.80

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Solution

The fourth proportional to 4,211.46, 6,316.68 and 1,289.80 is: 1,934.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.46 : 6,316.68 = 1,289.80 : x
  2. Step 2: Convert to fraction form
    4,211.46/6,316.68 = 1,289.80/x
  3. Step 3: Cross multiply
    4,211.46x = 6,316.68 × 1,289.80
  4. Step 4: Simplify right side
    4,211.46x = 8,147,253.86
  5. Step 5: Solve for x
    x = 8,147,253.86/4,211.46
  6. Step 6: Final answer
    x = 1,934.54

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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.