Home / 7,938.52-11,907.78-2,741.56

Finding the Fourth Proportional to 7,938.52, 11,907.78 and 2,741.56

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Solution

The fourth proportional to 7,938.52, 11,907.78 and 2,741.56 is: 4,112.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.52 : 11,907.78 = 2,741.56 : x
  2. Step 2: Convert to fraction form
    7,938.52/11,907.78 = 2,741.56/x
  3. Step 3: Cross multiply
    7,938.52x = 11,907.78 × 2,741.56
  4. Step 4: Simplify right side
    7,938.52x = 32,645,893.34
  5. Step 5: Solve for x
    x = 32,645,893.34/7,938.52
  6. Step 6: Final answer
    x = 4,112.34

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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.