Home / 1,297.14-1,935.96-1,186.98

Finding the Fourth Proportional to 1,297.14, 1,935.96 and 1,186.98

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Solution

The fourth proportional to 1,297.14, 1,935.96 and 1,186.98 is: 1,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297.14 : 1,935.96 = 1,186.98 : x
  2. Step 2: Convert to fraction form
    1,297.14/1,935.96 = 1,186.98/x
  3. Step 3: Cross multiply
    1,297.14x = 1,935.96 × 1,186.98
  4. Step 4: Simplify right side
    1,297.14x = 2,297,945.80
  5. Step 5: Solve for x
    x = 2,297,945.80/1,297.14
  6. Step 6: Final answer
    x = 1,771.55

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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.