Home / 3,558.28-4,910.34-1,986.37

Finding the Fourth Proportional to 3,558.28, 4,910.34 and 1,986.37

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Solution

The fourth proportional to 3,558.28, 4,910.34 and 1,986.37 is: 2,741.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.28 : 4,910.34 = 1,986.37 : x
  2. Step 2: Convert to fraction form
    3,558.28/4,910.34 = 1,986.37/x
  3. Step 3: Cross multiply
    3,558.28x = 4,910.34 × 1,986.37
  4. Step 4: Simplify right side
    3,558.28x = 9,753,752.07
  5. Step 5: Solve for x
    x = 9,753,752.07/3,558.28
  6. Step 6: Final answer
    x = 2,741.14

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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.