Home / 3,982.53-5,495.64-2,490.38

Finding the Fourth Proportional to 3,982.53, 5,495.64 and 2,490.38

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Solution

The fourth proportional to 3,982.53, 5,495.64 and 2,490.38 is: 3,436.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.53 : 5,495.64 = 2,490.38 : x
  2. Step 2: Convert to fraction form
    3,982.53/5,495.64 = 2,490.38/x
  3. Step 3: Cross multiply
    3,982.53x = 5,495.64 × 2,490.38
  4. Step 4: Simplify right side
    3,982.53x = 13,686,231.94
  5. Step 5: Solve for x
    x = 13,686,231.94/3,982.53
  6. Step 6: Final answer
    x = 3,436.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.