Home / 3,119.49-4,662.78-2,381.37

Finding the Fourth Proportional to 3,119.49, 4,662.78 and 2,381.37

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Solution

The fourth proportional to 3,119.49, 4,662.78 and 2,381.37 is: 3,559.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.49 : 4,662.78 = 2,381.37 : x
  2. Step 2: Convert to fraction form
    3,119.49/4,662.78 = 2,381.37/x
  3. Step 3: Cross multiply
    3,119.49x = 4,662.78 × 2,381.37
  4. Step 4: Simplify right side
    3,119.49x = 11,103,804.41
  5. Step 5: Solve for x
    x = 11,103,804.41/3,119.49
  6. Step 6: Final answer
    x = 3,559.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.