Home / 2,613.24-3,919.08-1,379.99

Finding the Fourth Proportional to 2,613.24, 3,919.08 and 1,379.99

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Solution

The fourth proportional to 2,613.24, 3,919.08 and 1,379.99 is: 2,069.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,613.24 : 3,919.08 = 1,379.99 : x
  2. Step 2: Convert to fraction form
    2,613.24/3,919.08 = 1,379.99/x
  3. Step 3: Cross multiply
    2,613.24x = 3,919.08 × 1,379.99
  4. Step 4: Simplify right side
    2,613.24x = 5,408,271.61
  5. Step 5: Solve for x
    x = 5,408,271.61/2,613.24
  6. Step 6: Final answer
    x = 2,069.57

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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.