Home / 7,907.05-11,856.57-2,640.18

Finding the Fourth Proportional to 7,907.05, 11,856.57 and 2,640.18

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Solution

The fourth proportional to 7,907.05, 11,856.57 and 2,640.18 is: 3,958.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.05 : 11,856.57 = 2,640.18 : x
  2. Step 2: Convert to fraction form
    7,907.05/11,856.57 = 2,640.18/x
  3. Step 3: Cross multiply
    7,907.05x = 11,856.57 × 2,640.18
  4. Step 4: Simplify right side
    7,907.05x = 31,303,508.62
  5. Step 5: Solve for x
    x = 31,303,508.62/7,907.05
  6. Step 6: Final answer
    x = 3,958.94

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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.