Home / 3,971.49-5,480.22-2,377.81

Finding the Fourth Proportional to 3,971.49, 5,480.22 and 2,377.81

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Solution

The fourth proportional to 3,971.49, 5,480.22 and 2,377.81 is: 3,281.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.49 : 5,480.22 = 2,377.81 : x
  2. Step 2: Convert to fraction form
    3,971.49/5,480.22 = 2,377.81/x
  3. Step 3: Cross multiply
    3,971.49x = 5,480.22 × 2,377.81
  4. Step 4: Simplify right side
    3,971.49x = 13,030,921.92
  5. Step 5: Solve for x
    x = 13,030,921.92/3,971.49
  6. Step 6: Final answer
    x = 3,281.12

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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.