Home / 3,558.60-4,910.16-1,986.48

Finding the Fourth Proportional to 3,558.60, 4,910.16 and 1,986.48

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Solution

The fourth proportional to 3,558.60, 4,910.16 and 1,986.48 is: 2,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.60 : 4,910.16 = 1,986.48 : x
  2. Step 2: Convert to fraction form
    3,558.60/4,910.16 = 1,986.48/x
  3. Step 3: Cross multiply
    3,558.60x = 4,910.16 × 1,986.48
  4. Step 4: Simplify right side
    3,558.60x = 9,753,934.64
  5. Step 5: Solve for x
    x = 9,753,934.64/3,558.60
  6. Step 6: Final answer
    x = 2,740.95

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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.