Home / 3,290.35-4,540.71-1,798.30

Finding the Fourth Proportional to 3,290.35, 4,540.71 and 1,798.30

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Solution

The fourth proportional to 3,290.35, 4,540.71 and 1,798.30 is: 2,481.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.35 : 4,540.71 = 1,798.30 : x
  2. Step 2: Convert to fraction form
    3,290.35/4,540.71 = 1,798.30/x
  3. Step 3: Cross multiply
    3,290.35x = 4,540.71 × 1,798.30
  4. Step 4: Simplify right side
    3,290.35x = 8,165,561.10
  5. Step 5: Solve for x
    x = 8,165,561.10/3,290.35
  6. Step 6: Final answer
    x = 2,481.67

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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.