Home / 3,986.97-5,981.58-1,795.20

Finding the Fourth Proportional to 3,986.97, 5,981.58 and 1,795.20

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Solution

The fourth proportional to 3,986.97, 5,981.58 and 1,795.20 is: 2,693.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.97 : 5,981.58 = 1,795.20 : x
  2. Step 2: Convert to fraction form
    3,986.97/5,981.58 = 1,795.20/x
  3. Step 3: Cross multiply
    3,986.97x = 5,981.58 × 1,795.20
  4. Step 4: Simplify right side
    3,986.97x = 10,738,132.42
  5. Step 5: Solve for x
    x = 10,738,132.42/3,986.97
  6. Step 6: Final answer
    x = 2,693.31

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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.