Home / 3,676.89-5,513.26-1,211.05

Finding the Fourth Proportional to 3,676.89, 5,513.26 and 1,211.05

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Solution

The fourth proportional to 3,676.89, 5,513.26 and 1,211.05 is: 1,815.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.89 : 5,513.26 = 1,211.05 : x
  2. Step 2: Convert to fraction form
    3,676.89/5,513.26 = 1,211.05/x
  3. Step 3: Cross multiply
    3,676.89x = 5,513.26 × 1,211.05
  4. Step 4: Simplify right side
    3,676.89x = 6,676,833.52
  5. Step 5: Solve for x
    x = 6,676,833.52/3,676.89
  6. Step 6: Final answer
    x = 1,815.89

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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.