Home / 3,878.15-5,817.08-1,245.59

Finding the Fourth Proportional to 3,878.15, 5,817.08 and 1,245.59

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Solution

The fourth proportional to 3,878.15, 5,817.08 and 1,245.59 is: 1,868.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.15 : 5,817.08 = 1,245.59 : x
  2. Step 2: Convert to fraction form
    3,878.15/5,817.08 = 1,245.59/x
  3. Step 3: Cross multiply
    3,878.15x = 5,817.08 × 1,245.59
  4. Step 4: Simplify right side
    3,878.15x = 7,245,661.36
  5. Step 5: Solve for x
    x = 7,245,661.36/3,878.15
  6. Step 6: Final answer
    x = 1,868.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.