Home / 3,237.58-4,856.38-1,289.78

Finding the Fourth Proportional to 3,237.58, 4,856.38 and 1,289.78

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Solution

The fourth proportional to 3,237.58, 4,856.38 and 1,289.78 is: 1,934.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,237.58 : 4,856.38 = 1,289.78 : x
  2. Step 2: Convert to fraction form
    3,237.58/4,856.38 = 1,289.78/x
  3. Step 3: Cross multiply
    3,237.58x = 4,856.38 × 1,289.78
  4. Step 4: Simplify right side
    3,237.58x = 6,263,661.80
  5. Step 5: Solve for x
    x = 6,263,661.80/3,237.58
  6. Step 6: Final answer
    x = 1,934.67

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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.