Home / 5,317.82-7,976.76-1,855.07

Finding the Fourth Proportional to 5,317.82, 7,976.76 and 1,855.07

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Solution

The fourth proportional to 5,317.82, 7,976.76 and 1,855.07 is: 2,782.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.82 : 7,976.76 = 1,855.07 : x
  2. Step 2: Convert to fraction form
    5,317.82/7,976.76 = 1,855.07/x
  3. Step 3: Cross multiply
    5,317.82x = 7,976.76 × 1,855.07
  4. Step 4: Simplify right side
    5,317.82x = 14,797,448.17
  5. Step 5: Solve for x
    x = 14,797,448.17/5,317.82
  6. Step 6: Final answer
    x = 2,782.62

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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.