Home / 5,189.26-7,783.88-1,682.20

Finding the Fourth Proportional to 5,189.26, 7,783.88 and 1,682.20

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Solution

The fourth proportional to 5,189.26, 7,783.88 and 1,682.20 is: 2,523.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.26 : 7,783.88 = 1,682.20 : x
  2. Step 2: Convert to fraction form
    5,189.26/7,783.88 = 1,682.20/x
  3. Step 3: Cross multiply
    5,189.26x = 7,783.88 × 1,682.20
  4. Step 4: Simplify right side
    5,189.26x = 13,094,042.94
  5. Step 5: Solve for x
    x = 13,094,042.94/5,189.26
  6. Step 6: Final answer
    x = 2,523.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.