Home / 7,429.88-11,145.40-2,499.48

Finding the Fourth Proportional to 7,429.88, 11,145.40 and 2,499.48

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Solution

The fourth proportional to 7,429.88, 11,145.40 and 2,499.48 is: 3,749.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.88 : 11,145.40 = 2,499.48 : x
  2. Step 2: Convert to fraction form
    7,429.88/11,145.40 = 2,499.48/x
  3. Step 3: Cross multiply
    7,429.88x = 11,145.40 × 2,499.48
  4. Step 4: Simplify right side
    7,429.88x = 27,857,704.39
  5. Step 5: Solve for x
    x = 27,857,704.39/7,429.88
  6. Step 6: Final answer
    x = 3,749.42

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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.