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Finding the Fourth Proportional to 3,580.03, 4,940.04 and 1,986.58

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Solution

The fourth proportional to 3,580.03, 4,940.04 and 1,986.58 is: 2,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.03 : 4,940.04 = 1,986.58 : x
  2. Step 2: Convert to fraction form
    3,580.03/4,940.04 = 1,986.58/x
  3. Step 3: Cross multiply
    3,580.03x = 4,940.04 × 1,986.58
  4. Step 4: Simplify right side
    3,580.03x = 9,813,784.66
  5. Step 5: Solve for x
    x = 9,813,784.66/3,580.03
  6. Step 6: Final answer
    x = 2,741.26

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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.