Home / 3,491.85-5,234.66-1,299.08

Finding the Fourth Proportional to 3,491.85, 5,234.66 and 1,299.08

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Solution

The fourth proportional to 3,491.85, 5,234.66 and 1,299.08 is: 1,947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.85 : 5,234.66 = 1,299.08 : x
  2. Step 2: Convert to fraction form
    3,491.85/5,234.66 = 1,299.08/x
  3. Step 3: Cross multiply
    3,491.85x = 5,234.66 × 1,299.08
  4. Step 4: Simplify right side
    3,491.85x = 6,800,209.44
  5. Step 5: Solve for x
    x = 6,800,209.44/3,491.85
  6. Step 6: Final answer
    x = 1,947.45

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1.5x scale

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.