Home / 3,676.55-5,513.70-1,210.80

Finding the Fourth Proportional to 3,676.55, 5,513.70 and 1,210.80

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Solution

The fourth proportional to 3,676.55, 5,513.70 and 1,210.80 is: 1,815.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.55 : 5,513.70 = 1,210.80 : x
  2. Step 2: Convert to fraction form
    3,676.55/5,513.70 = 1,210.80/x
  3. Step 3: Cross multiply
    3,676.55x = 5,513.70 × 1,210.80
  4. Step 4: Simplify right side
    3,676.55x = 6,675,987.96
  5. Step 5: Solve for x
    x = 6,675,987.96/3,676.55
  6. Step 6: Final answer
    x = 1,815.83

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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.