Home / 3,160.77-4,738.40-1,211.60

Finding the Fourth Proportional to 3,160.77, 4,738.40 and 1,211.60

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Solution

The fourth proportional to 3,160.77, 4,738.40 and 1,211.60 is: 1,816.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.77 : 4,738.40 = 1,211.60 : x
  2. Step 2: Convert to fraction form
    3,160.77/4,738.40 = 1,211.60/x
  3. Step 3: Cross multiply
    3,160.77x = 4,738.40 × 1,211.60
  4. Step 4: Simplify right side
    3,160.77x = 5,741,045.44
  5. Step 5: Solve for x
    x = 5,741,045.44/3,160.77
  6. Step 6: Final answer
    x = 1,816.34

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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.