Home / 2,765.54-4,148.42-1,122.05

Finding the Fourth Proportional to 2,765.54, 4,148.42 and 1,122.05

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Solution

The fourth proportional to 2,765.54, 4,148.42 and 1,122.05 is: 1,683.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.54 : 4,148.42 = 1,122.05 : x
  2. Step 2: Convert to fraction form
    2,765.54/4,148.42 = 1,122.05/x
  3. Step 3: Cross multiply
    2,765.54x = 4,148.42 × 1,122.05
  4. Step 4: Simplify right side
    2,765.54x = 4,654,739.42
  5. Step 5: Solve for x
    x = 4,654,739.42/2,765.54
  6. Step 6: Final answer
    x = 1,683.12

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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.