Home / 2,122.90-3,185.03-1,347.73

Finding the Fourth Proportional to 2,122.90, 3,185.03 and 1,347.73

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Solution

The fourth proportional to 2,122.90, 3,185.03 and 1,347.73 is: 2,022.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.90 : 3,185.03 = 1,347.73 : x
  2. Step 2: Convert to fraction form
    2,122.90/3,185.03 = 1,347.73/x
  3. Step 3: Cross multiply
    2,122.90x = 3,185.03 × 1,347.73
  4. Step 4: Simplify right side
    2,122.90x = 4,292,560.48
  5. Step 5: Solve for x
    x = 4,292,560.48/2,122.90
  6. Step 6: Final answer
    x = 2,022.03

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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.