Home / 2,480.34-3,422.90-1,361.11

Finding the Fourth Proportional to 2,480.34, 3,422.90 and 1,361.11

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Solution

The fourth proportional to 2,480.34, 3,422.90 and 1,361.11 is: 1,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.34 : 3,422.90 = 1,361.11 : x
  2. Step 2: Convert to fraction form
    2,480.34/3,422.90 = 1,361.11/x
  3. Step 3: Cross multiply
    2,480.34x = 3,422.90 × 1,361.11
  4. Step 4: Simplify right side
    2,480.34x = 4,658,943.42
  5. Step 5: Solve for x
    x = 4,658,943.42/2,480.34
  6. Step 6: Final answer
    x = 1,878.35

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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.