Home / 2,765.65-4,145.73-1,777.85

Finding the Fourth Proportional to 2,765.65, 4,145.73 and 1,777.85

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Solution

The fourth proportional to 2,765.65, 4,145.73 and 1,777.85 is: 2,665.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.65 : 4,145.73 = 1,777.85 : x
  2. Step 2: Convert to fraction form
    2,765.65/4,145.73 = 1,777.85/x
  3. Step 3: Cross multiply
    2,765.65x = 4,145.73 × 1,777.85
  4. Step 4: Simplify right side
    2,765.65x = 7,370,489.78
  5. Step 5: Solve for x
    x = 7,370,489.78/2,765.65
  6. Step 6: Final answer
    x = 2,665.01

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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.