Home / 7,889.16-11,825.44-2,622.76

Finding the Fourth Proportional to 7,889.16, 11,825.44 and 2,622.76

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Solution

The fourth proportional to 7,889.16, 11,825.44 and 2,622.76 is: 3,931.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.16 : 11,825.44 = 2,622.76 : x
  2. Step 2: Convert to fraction form
    7,889.16/11,825.44 = 2,622.76/x
  3. Step 3: Cross multiply
    7,889.16x = 11,825.44 × 2,622.76
  4. Step 4: Simplify right side
    7,889.16x = 31,015,257.21
  5. Step 5: Solve for x
    x = 31,015,257.21/7,889.16
  6. Step 6: Final answer
    x = 3,931.38

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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.