Home / 3,858.45-5,788.49-1,261.19

Finding the Fourth Proportional to 3,858.45, 5,788.49 and 1,261.19

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Solution

The fourth proportional to 3,858.45, 5,788.49 and 1,261.19 is: 1,892.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.45 : 5,788.49 = 1,261.19 : x
  2. Step 2: Convert to fraction form
    3,858.45/5,788.49 = 1,261.19/x
  3. Step 3: Cross multiply
    3,858.45x = 5,788.49 × 1,261.19
  4. Step 4: Simplify right side
    3,858.45x = 7,300,371.23
  5. Step 5: Solve for x
    x = 7,300,371.23/3,858.45
  6. Step 6: Final answer
    x = 1,892.05

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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.