Home / 3,558.20-4,910.42-1,986.19

Finding the Fourth Proportional to 3,558.20, 4,910.42 and 1,986.19

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Solution

The fourth proportional to 3,558.20, 4,910.42 and 1,986.19 is: 2,741.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.20 : 4,910.42 = 1,986.19 : x
  2. Step 2: Convert to fraction form
    3,558.20/4,910.42 = 1,986.19/x
  3. Step 3: Cross multiply
    3,558.20x = 4,910.42 × 1,986.19
  4. Step 4: Simplify right side
    3,558.20x = 9,753,019.79
  5. Step 5: Solve for x
    x = 9,753,019.79/3,558.20
  6. Step 6: Final answer
    x = 2,741.00

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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.