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Finding the Fourth Proportional to 1,815.24, 2,723.22 and 775.23

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Solution

The fourth proportional to 1,815.24, 2,723.22 and 775.23 is: 1,163.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.24 : 2,723.22 = 775.23 : x
  2. Step 2: Convert to fraction form
    1,815.24/2,723.22 = 775.23/x
  3. Step 3: Cross multiply
    1,815.24x = 2,723.22 × 775.23
  4. Step 4: Simplify right side
    1,815.24x = 2,111,121.84
  5. Step 5: Solve for x
    x = 2,111,121.84/1,815.24
  6. Step 6: Final answer
    x = 1,163.00

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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.