Home / 1,181.45-1,770.37-1,077.05

Finding the Fourth Proportional to 1,181.45, 1,770.37 and 1,077.05

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Solution

The fourth proportional to 1,181.45, 1,770.37 and 1,077.05 is: 1,613.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181.45 : 1,770.37 = 1,077.05 : x
  2. Step 2: Convert to fraction form
    1,181.45/1,770.37 = 1,077.05/x
  3. Step 3: Cross multiply
    1,181.45x = 1,770.37 × 1,077.05
  4. Step 4: Simplify right side
    1,181.45x = 1,906,777.01
  5. Step 5: Solve for x
    x = 1,906,777.01/1,181.45
  6. Step 6: Final answer
    x = 1,613.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.