Home / 3,676.18-5,515.08-1,211.76

Finding the Fourth Proportional to 3,676.18, 5,515.08 and 1,211.76

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Solution

The fourth proportional to 3,676.18, 5,515.08 and 1,211.76 is: 1,817.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.18 : 5,515.08 = 1,211.76 : x
  2. Step 2: Convert to fraction form
    3,676.18/5,515.08 = 1,211.76/x
  3. Step 3: Cross multiply
    3,676.18x = 5,515.08 × 1,211.76
  4. Step 4: Simplify right side
    3,676.18x = 6,682,953.34
  5. Step 5: Solve for x
    x = 6,682,953.34/3,676.18
  6. Step 6: Final answer
    x = 1,817.91

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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.