Home / 1,150.21-1,723.29-1,107.55

Finding the Fourth Proportional to 1,150.21, 1,723.29 and 1,107.55

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Solution

The fourth proportional to 1,150.21, 1,723.29 and 1,107.55 is: 1,659.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.21 : 1,723.29 = 1,107.55 : x
  2. Step 2: Convert to fraction form
    1,150.21/1,723.29 = 1,107.55/x
  3. Step 3: Cross multiply
    1,150.21x = 1,723.29 × 1,107.55
  4. Step 4: Simplify right side
    1,150.21x = 1,908,629.84
  5. Step 5: Solve for x
    x = 1,908,629.84/1,150.21
  6. Step 6: Final answer
    x = 1,659.38

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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.