Home / 1,186.58-1,771.07-1,113.62

Finding the Fourth Proportional to 1,186.58, 1,771.07 and 1,113.62

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Solution

The fourth proportional to 1,186.58, 1,771.07 and 1,113.62 is: 1,662.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186.58 : 1,771.07 = 1,113.62 : x
  2. Step 2: Convert to fraction form
    1,186.58/1,771.07 = 1,113.62/x
  3. Step 3: Cross multiply
    1,186.58x = 1,771.07 × 1,113.62
  4. Step 4: Simplify right side
    1,186.58x = 1,972,298.97
  5. Step 5: Solve for x
    x = 1,972,298.97/1,186.58
  6. Step 6: Final answer
    x = 1,662.17

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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.