Home / 2,480.90-3,423.58-1,361.84

Finding the Fourth Proportional to 2,480.90, 3,423.58 and 1,361.84

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Solution

The fourth proportional to 2,480.90, 3,423.58 and 1,361.84 is: 1,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.90 : 3,423.58 = 1,361.84 : x
  2. Step 2: Convert to fraction form
    2,480.90/3,423.58 = 1,361.84/x
  3. Step 3: Cross multiply
    2,480.90x = 3,423.58 × 1,361.84
  4. Step 4: Simplify right side
    2,480.90x = 4,662,347.66
  5. Step 5: Solve for x
    x = 4,662,347.66/2,480.90
  6. Step 6: Final answer
    x = 1,879.30

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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.