Home / 3,247.70-4,871.48-1,299.38

Finding the Fourth Proportional to 3,247.70, 4,871.48 and 1,299.38

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Solution

The fourth proportional to 3,247.70, 4,871.48 and 1,299.38 is: 1,949.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.70 : 4,871.48 = 1,299.38 : x
  2. Step 2: Convert to fraction form
    3,247.70/4,871.48 = 1,299.38/x
  3. Step 3: Cross multiply
    3,247.70x = 4,871.48 × 1,299.38
  4. Step 4: Simplify right side
    3,247.70x = 6,329,872.83
  5. Step 5: Solve for x
    x = 6,329,872.83/3,247.70
  6. Step 6: Final answer
    x = 1,949.04

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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.