Home / 5,317.83-7,976.82-1,855.08

Finding the Fourth Proportional to 5,317.83, 7,976.82 and 1,855.08

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Solution

The fourth proportional to 5,317.83, 7,976.82 and 1,855.08 is: 2,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.83 : 7,976.82 = 1,855.08 : x
  2. Step 2: Convert to fraction form
    5,317.83/7,976.82 = 1,855.08/x
  3. Step 3: Cross multiply
    5,317.83x = 7,976.82 × 1,855.08
  4. Step 4: Simplify right side
    5,317.83x = 14,797,639.25
  5. Step 5: Solve for x
    x = 14,797,639.25/5,317.83
  6. Step 6: Final answer
    x = 2,782.65

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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.