Home / 3,676.29-5,515.11-1,212.84

Finding the Fourth Proportional to 3,676.29, 5,515.11 and 1,212.84

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Solution

The fourth proportional to 3,676.29, 5,515.11 and 1,212.84 is: 1,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.29 : 5,515.11 = 1,212.84 : x
  2. Step 2: Convert to fraction form
    3,676.29/5,515.11 = 1,212.84/x
  3. Step 3: Cross multiply
    3,676.29x = 5,515.11 × 1,212.84
  4. Step 4: Simplify right side
    3,676.29x = 6,688,946.01
  5. Step 5: Solve for x
    x = 6,688,946.01/3,676.29
  6. Step 6: Final answer
    x = 1,819.48

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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.