Home / 3,813.84-5,718.93-1,621.38

Finding the Fourth Proportional to 3,813.84, 5,718.93 and 1,621.38

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Solution

The fourth proportional to 3,813.84, 5,718.93 and 1,621.38 is: 2,431.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.84 : 5,718.93 = 1,621.38 : x
  2. Step 2: Convert to fraction form
    3,813.84/5,718.93 = 1,621.38/x
  3. Step 3: Cross multiply
    3,813.84x = 5,718.93 × 1,621.38
  4. Step 4: Simplify right side
    3,813.84x = 9,272,558.72
  5. Step 5: Solve for x
    x = 9,272,558.72/3,813.84
  6. Step 6: Final answer
    x = 2,431.29

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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.