Home / 3,676.33-5,515.32-1,211.05

Finding the Fourth Proportional to 3,676.33, 5,515.32 and 1,211.05

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Solution

The fourth proportional to 3,676.33, 5,515.32 and 1,211.05 is: 1,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.33 : 5,515.32 = 1,211.05 : x
  2. Step 2: Convert to fraction form
    3,676.33/5,515.32 = 1,211.05/x
  3. Step 3: Cross multiply
    3,676.33x = 5,515.32 × 1,211.05
  4. Step 4: Simplify right side
    3,676.33x = 6,679,328.29
  5. Step 5: Solve for x
    x = 6,679,328.29/3,676.33
  6. Step 6: Final answer
    x = 1,816.85

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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.