Home / 3,810.63-5,714.73-1,212.96

Finding the Fourth Proportional to 3,810.63, 5,714.73 and 1,212.96

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Solution

The fourth proportional to 3,810.63, 5,714.73 and 1,212.96 is: 1,819.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.63 : 5,714.73 = 1,212.96 : x
  2. Step 2: Convert to fraction form
    3,810.63/5,714.73 = 1,212.96/x
  3. Step 3: Cross multiply
    3,810.63x = 5,714.73 × 1,212.96
  4. Step 4: Simplify right side
    3,810.63x = 6,931,738.90
  5. Step 5: Solve for x
    x = 6,931,738.90/3,810.63
  6. Step 6: Final answer
    x = 1,819.05

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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.