Home / 5,238-7,855.33-1,727.35

Finding the Fourth Proportional to 5,238, 7,855.33 and 1,727.35

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Solution

The fourth proportional to 5,238, 7,855.33 and 1,727.35 is: 2,590.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238 : 7,855.33 = 1,727.35 : x
  2. Step 2: Convert to fraction form
    5,238/7,855.33 = 1,727.35/x
  3. Step 3: Cross multiply
    5,238x = 7,855.33 × 1,727.35
  4. Step 4: Simplify right side
    5,238x = 13,568,904.28
  5. Step 5: Solve for x
    x = 13,568,904.28/5,238
  6. Step 6: Final answer
    x = 2,590.47

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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.