Home / 2,447.70-3,668.50-986.05

Finding the Fourth Proportional to 2,447.70, 3,668.50 and 986.05

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Solution

The fourth proportional to 2,447.70, 3,668.50 and 986.05 is: 1,477.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.70 : 3,668.50 = 986.05 : x
  2. Step 2: Convert to fraction form
    2,447.70/3,668.50 = 986.05/x
  3. Step 3: Cross multiply
    2,447.70x = 3,668.50 × 986.05
  4. Step 4: Simplify right side
    2,447.70x = 3,617,324.43
  5. Step 5: Solve for x
    x = 3,617,324.43/2,447.70
  6. Step 6: Final answer
    x = 1,477.85

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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.