Home / 3,078.06-4,245.96-1,898.31

Finding the Fourth Proportional to 3,078.06, 4,245.96 and 1,898.31

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Solution

The fourth proportional to 3,078.06, 4,245.96 and 1,898.31 is: 2,618.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.06 : 4,245.96 = 1,898.31 : x
  2. Step 2: Convert to fraction form
    3,078.06/4,245.96 = 1,898.31/x
  3. Step 3: Cross multiply
    3,078.06x = 4,245.96 × 1,898.31
  4. Step 4: Simplify right side
    3,078.06x = 8,060,148.33
  5. Step 5: Solve for x
    x = 8,060,148.33/3,078.06
  6. Step 6: Final answer
    x = 2,618.58

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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.