Home / 2,480.65-3,423.34-1,361.57

Finding the Fourth Proportional to 2,480.65, 3,423.34 and 1,361.57

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Solution

The fourth proportional to 2,480.65, 3,423.34 and 1,361.57 is: 1,878.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.65 : 3,423.34 = 1,361.57 : x
  2. Step 2: Convert to fraction form
    2,480.65/3,423.34 = 1,361.57/x
  3. Step 3: Cross multiply
    2,480.65x = 3,423.34 × 1,361.57
  4. Step 4: Simplify right side
    2,480.65x = 4,661,110.24
  5. Step 5: Solve for x
    x = 4,661,110.24/2,480.65
  6. Step 6: Final answer
    x = 1,878.99

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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.