Home / 3,580.06-4,940.23-1,986.79

Finding the Fourth Proportional to 3,580.06, 4,940.23 and 1,986.79

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Solution

The fourth proportional to 3,580.06, 4,940.23 and 1,986.79 is: 2,741.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.06 : 4,940.23 = 1,986.79 : x
  2. Step 2: Convert to fraction form
    3,580.06/4,940.23 = 1,986.79/x
  3. Step 3: Cross multiply
    3,580.06x = 4,940.23 × 1,986.79
  4. Step 4: Simplify right side
    3,580.06x = 9,815,199.56
  5. Step 5: Solve for x
    x = 9,815,199.56/3,580.06
  6. Step 6: Final answer
    x = 2,741.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.