Home / 1,186.74-1,769.49-1,185.12

Finding the Fourth Proportional to 1,186.74, 1,769.49 and 1,185.12

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Solution

The fourth proportional to 1,186.74, 1,769.49 and 1,185.12 is: 1,767.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186.74 : 1,769.49 = 1,185.12 : x
  2. Step 2: Convert to fraction form
    1,186.74/1,769.49 = 1,185.12/x
  3. Step 3: Cross multiply
    1,186.74x = 1,769.49 × 1,185.12
  4. Step 4: Simplify right side
    1,186.74x = 2,097,057.99
  5. Step 5: Solve for x
    x = 2,097,057.99/1,186.74
  6. Step 6: Final answer
    x = 1,767.07

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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.