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Finding the Fourth Proportional to 2,966.99, 4,449.93 and 775.59

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Solution

The fourth proportional to 2,966.99, 4,449.93 and 775.59 is: 1,163.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.99 : 4,449.93 = 775.59 : x
  2. Step 2: Convert to fraction form
    2,966.99/4,449.93 = 775.59/x
  3. Step 3: Cross multiply
    2,966.99x = 4,449.93 × 775.59
  4. Step 4: Simplify right side
    2,966.99x = 3,451,321.21
  5. Step 5: Solve for x
    x = 3,451,321.21/2,966.99
  6. Step 6: Final answer
    x = 1,163.24

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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.