Home / 3,878.29-5,816.05-1,245.25

Finding the Fourth Proportional to 3,878.29, 5,816.05 and 1,245.25

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Solution

The fourth proportional to 3,878.29, 5,816.05 and 1,245.25 is: 1,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.29 : 5,816.05 = 1,245.25 : x
  2. Step 2: Convert to fraction form
    3,878.29/5,816.05 = 1,245.25/x
  3. Step 3: Cross multiply
    3,878.29x = 5,816.05 × 1,245.25
  4. Step 4: Simplify right side
    3,878.29x = 7,242,436.26
  5. Step 5: Solve for x
    x = 7,242,436.26/3,878.29
  6. Step 6: Final answer
    x = 1,867.43

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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.