Home / 2,119.08-3,174.69-1,774.65

Finding the Fourth Proportional to 2,119.08, 3,174.69 and 1,774.65

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Solution

The fourth proportional to 2,119.08, 3,174.69 and 1,774.65 is: 2,658.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.08 : 3,174.69 = 1,774.65 : x
  2. Step 2: Convert to fraction form
    2,119.08/3,174.69 = 1,774.65/x
  3. Step 3: Cross multiply
    2,119.08x = 3,174.69 × 1,774.65
  4. Step 4: Simplify right side
    2,119.08x = 5,633,963.61
  5. Step 5: Solve for x
    x = 5,633,963.61/2,119.08
  6. Step 6: Final answer
    x = 2,658.68

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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.