Home / 1,163.15-1,734.34-1,114.55

Finding the Fourth Proportional to 1,163.15, 1,734.34 and 1,114.55

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Solution

The fourth proportional to 1,163.15, 1,734.34 and 1,114.55 is: 1,661.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.15 : 1,734.34 = 1,114.55 : x
  2. Step 2: Convert to fraction form
    1,163.15/1,734.34 = 1,114.55/x
  3. Step 3: Cross multiply
    1,163.15x = 1,734.34 × 1,114.55
  4. Step 4: Simplify right side
    1,163.15x = 1,932,997.19
  5. Step 5: Solve for x
    x = 1,932,997.19/1,163.15
  6. Step 6: Final answer
    x = 1,661.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.