Home / 2,480.87-3,423.41-1,361.63

Finding the Fourth Proportional to 2,480.87, 3,423.41 and 1,361.63

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Solution

The fourth proportional to 2,480.87, 3,423.41 and 1,361.63 is: 1,878.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.87 : 3,423.41 = 1,361.63 : x
  2. Step 2: Convert to fraction form
    2,480.87/3,423.41 = 1,361.63/x
  3. Step 3: Cross multiply
    2,480.87x = 3,423.41 × 1,361.63
  4. Step 4: Simplify right side
    2,480.87x = 4,661,421.16
  5. Step 5: Solve for x
    x = 4,661,421.16/2,480.87
  6. Step 6: Final answer
    x = 1,878.95

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1.5x scale

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.