Home / 1,629.42-2,249.27-1,157.39

Finding the Fourth Proportional to 1,629.42, 2,249.27 and 1,157.39

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Solution

The fourth proportional to 1,629.42, 2,249.27 and 1,157.39 is: 1,597.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.42 : 2,249.27 = 1,157.39 : x
  2. Step 2: Convert to fraction form
    1,629.42/2,249.27 = 1,157.39/x
  3. Step 3: Cross multiply
    1,629.42x = 2,249.27 × 1,157.39
  4. Step 4: Simplify right side
    1,629.42x = 2,603,278.35
  5. Step 5: Solve for x
    x = 2,603,278.35/1,629.42
  6. Step 6: Final answer
    x = 1,597.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.