Home / 2,379.40-3,567.33-1,145.65

Finding the Fourth Proportional to 2,379.40, 3,567.33 and 1,145.65

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Solution

The fourth proportional to 2,379.40, 3,567.33 and 1,145.65 is: 1,717.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.40 : 3,567.33 = 1,145.65 : x
  2. Step 2: Convert to fraction form
    2,379.40/3,567.33 = 1,145.65/x
  3. Step 3: Cross multiply
    2,379.40x = 3,567.33 × 1,145.65
  4. Step 4: Simplify right side
    2,379.40x = 4,086,911.61
  5. Step 5: Solve for x
    x = 4,086,911.61/2,379.40
  6. Step 6: Final answer
    x = 1,717.62

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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.