Home / 7,621.44-11,431.44-2,690.82

Finding the Fourth Proportional to 7,621.44, 11,431.44 and 2,690.82

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Solution

The fourth proportional to 7,621.44, 11,431.44 and 2,690.82 is: 4,035.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.44 : 11,431.44 = 2,690.82 : x
  2. Step 2: Convert to fraction form
    7,621.44/11,431.44 = 2,690.82/x
  3. Step 3: Cross multiply
    7,621.44x = 11,431.44 × 2,690.82
  4. Step 4: Simplify right side
    7,621.44x = 30,759,947.38
  5. Step 5: Solve for x
    x = 30,759,947.38/7,621.44
  6. Step 6: Final answer
    x = 4,035.98

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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.