Home / 7,291.36-10,939.44-2,906.40

Finding the Fourth Proportional to 7,291.36, 10,939.44 and 2,906.40

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Solution

The fourth proportional to 7,291.36, 10,939.44 and 2,906.40 is: 4,360.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,291.36 : 10,939.44 = 2,906.40 : x
  2. Step 2: Convert to fraction form
    7,291.36/10,939.44 = 2,906.40/x
  3. Step 3: Cross multiply
    7,291.36x = 10,939.44 × 2,906.40
  4. Step 4: Simplify right side
    7,291.36x = 31,794,388.42
  5. Step 5: Solve for x
    x = 31,794,388.42/7,291.36
  6. Step 6: Final answer
    x = 4,360.56

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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.