Home / 3,676.85-5,080.74-2,680.40

Finding the Fourth Proportional to 3,676.85, 5,080.74 and 2,680.40

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Solution

The fourth proportional to 3,676.85, 5,080.74 and 2,680.40 is: 3,703.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.85 : 5,080.74 = 2,680.40 : x
  2. Step 2: Convert to fraction form
    3,676.85/5,080.74 = 2,680.40/x
  3. Step 3: Cross multiply
    3,676.85x = 5,080.74 × 2,680.40
  4. Step 4: Simplify right side
    3,676.85x = 13,618,415.50
  5. Step 5: Solve for x
    x = 13,618,415.50/3,676.85
  6. Step 6: Final answer
    x = 3,703.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.