Home / 3,580.03-4,940.42-1,986.66

Finding the Fourth Proportional to 3,580.03, 4,940.42 and 1,986.66

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Solution

The fourth proportional to 3,580.03, 4,940.42 and 1,986.66 is: 2,741.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.03 : 4,940.42 = 1,986.66 : x
  2. Step 2: Convert to fraction form
    3,580.03/4,940.42 = 1,986.66/x
  3. Step 3: Cross multiply
    3,580.03x = 4,940.42 × 1,986.66
  4. Step 4: Simplify right side
    3,580.03x = 9,814,950.84
  5. Step 5: Solve for x
    x = 9,814,950.84/3,580.03
  6. Step 6: Final answer
    x = 2,741.58

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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.