Home / 3,498.78-4,828.26-1,986.62

Finding the Fourth Proportional to 3,498.78, 4,828.26 and 1,986.62

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Solution

The fourth proportional to 3,498.78, 4,828.26 and 1,986.62 is: 2,741.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,498.78 : 4,828.26 = 1,986.62 : x
  2. Step 2: Convert to fraction form
    3,498.78/4,828.26 = 1,986.62/x
  3. Step 3: Cross multiply
    3,498.78x = 4,828.26 × 1,986.62
  4. Step 4: Simplify right side
    3,498.78x = 9,591,917.88
  5. Step 5: Solve for x
    x = 9,591,917.88/3,498.78
  6. Step 6: Final answer
    x = 2,741.50

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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.