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Finding the Fourth Proportional to 6,390.75, 9,586.94 and 1,773.75

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Solution

The fourth proportional to 6,390.75, 9,586.94 and 1,773.75 is: 2,660.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390.75 : 9,586.94 = 1,773.75 : x
  2. Step 2: Convert to fraction form
    6,390.75/9,586.94 = 1,773.75/x
  3. Step 3: Cross multiply
    6,390.75x = 9,586.94 × 1,773.75
  4. Step 4: Simplify right side
    6,390.75x = 17,004,825.96
  5. Step 5: Solve for x
    x = 17,004,825.96/6,390.75
  6. Step 6: Final answer
    x = 2,660.85

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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.