Home / 3,450.12-4,761.36-1,878.18

Finding the Fourth Proportional to 3,450.12, 4,761.36 and 1,878.18

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Solution

The fourth proportional to 3,450.12, 4,761.36 and 1,878.18 is: 2,591.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.12 : 4,761.36 = 1,878.18 : x
  2. Step 2: Convert to fraction form
    3,450.12/4,761.36 = 1,878.18/x
  3. Step 3: Cross multiply
    3,450.12x = 4,761.36 × 1,878.18
  4. Step 4: Simplify right side
    3,450.12x = 8,942,691.12
  5. Step 5: Solve for x
    x = 8,942,691.12/3,450.12
  6. Step 6: Final answer
    x = 2,591.99

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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.