Home / 7,789.38-11,682.61-2,090.42

Finding the Fourth Proportional to 7,789.38, 11,682.61 and 2,090.42

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Solution

The fourth proportional to 7,789.38, 11,682.61 and 2,090.42 is: 3,135.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.38 : 11,682.61 = 2,090.42 : x
  2. Step 2: Convert to fraction form
    7,789.38/11,682.61 = 2,090.42/x
  3. Step 3: Cross multiply
    7,789.38x = 11,682.61 × 2,090.42
  4. Step 4: Simplify right side
    7,789.38x = 24,421,619.24
  5. Step 5: Solve for x
    x = 24,421,619.24/7,789.38
  6. Step 6: Final answer
    x = 3,135.24

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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.