Home / 2,131.12-3,195.09-1,435.84

Finding the Fourth Proportional to 2,131.12, 3,195.09 and 1,435.84

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Solution

The fourth proportional to 2,131.12, 3,195.09 and 1,435.84 is: 2,152.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.12 : 3,195.09 = 1,435.84 : x
  2. Step 2: Convert to fraction form
    2,131.12/3,195.09 = 1,435.84/x
  3. Step 3: Cross multiply
    2,131.12x = 3,195.09 × 1,435.84
  4. Step 4: Simplify right side
    2,131.12x = 4,587,638.03
  5. Step 5: Solve for x
    x = 4,587,638.03/2,131.12
  6. Step 6: Final answer
    x = 2,152.69

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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.