Home / 2,147.58-3,220.78-1,801.09

Finding the Fourth Proportional to 2,147.58, 3,220.78 and 1,801.09

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Solution

The fourth proportional to 2,147.58, 3,220.78 and 1,801.09 is: 2,701.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.58 : 3,220.78 = 1,801.09 : x
  2. Step 2: Convert to fraction form
    2,147.58/3,220.78 = 1,801.09/x
  3. Step 3: Cross multiply
    2,147.58x = 3,220.78 × 1,801.09
  4. Step 4: Simplify right side
    2,147.58x = 5,800,899.43
  5. Step 5: Solve for x
    x = 5,800,899.43/2,147.58
  6. Step 6: Final answer
    x = 2,701.13

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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.