Home / 7,339.78-11,009.07-2,074.69

Finding the Fourth Proportional to 7,339.78, 11,009.07 and 2,074.69

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Solution

The fourth proportional to 7,339.78, 11,009.07 and 2,074.69 is: 3,111.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.78 : 11,009.07 = 2,074.69 : x
  2. Step 2: Convert to fraction form
    7,339.78/11,009.07 = 2,074.69/x
  3. Step 3: Cross multiply
    7,339.78x = 11,009.07 × 2,074.69
  4. Step 4: Simplify right side
    7,339.78x = 22,840,407.44
  5. Step 5: Solve for x
    x = 22,840,407.44/7,339.78
  6. Step 6: Final answer
    x = 3,111.87

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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.