Home / 3,317.10-4,975.80-1,855.14

Finding the Fourth Proportional to 3,317.10, 4,975.80 and 1,855.14

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Solution

The fourth proportional to 3,317.10, 4,975.80 and 1,855.14 is: 2,782.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.10 : 4,975.80 = 1,855.14 : x
  2. Step 2: Convert to fraction form
    3,317.10/4,975.80 = 1,855.14/x
  3. Step 3: Cross multiply
    3,317.10x = 4,975.80 × 1,855.14
  4. Step 4: Simplify right side
    3,317.10x = 9,230,805.61
  5. Step 5: Solve for x
    x = 9,230,805.61/3,317.10
  6. Step 6: Final answer
    x = 2,782.79

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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.