Home / 7,936.40-11,907.06-3,256.79

Finding the Fourth Proportional to 7,936.40, 11,907.06 and 3,256.79

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Solution

The fourth proportional to 7,936.40, 11,907.06 and 3,256.79 is: 4,886.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.40 : 11,907.06 = 3,256.79 : x
  2. Step 2: Convert to fraction form
    7,936.40/11,907.06 = 3,256.79/x
  3. Step 3: Cross multiply
    7,936.40x = 11,907.06 × 3,256.79
  4. Step 4: Simplify right side
    7,936.40x = 38,778,734.40
  5. Step 5: Solve for x
    x = 38,778,734.40/7,936.40
  6. Step 6: Final answer
    x = 4,886.19

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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.