Home / 2,577.80-3,863.58-1,189.24

Finding the Fourth Proportional to 2,577.80, 3,863.58 and 1,189.24

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Solution

The fourth proportional to 2,577.80, 3,863.58 and 1,189.24 is: 1,782.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.80 : 3,863.58 = 1,189.24 : x
  2. Step 2: Convert to fraction form
    2,577.80/3,863.58 = 1,189.24/x
  3. Step 3: Cross multiply
    2,577.80x = 3,863.58 × 1,189.24
  4. Step 4: Simplify right side
    2,577.80x = 4,594,723.88
  5. Step 5: Solve for x
    x = 4,594,723.88/2,577.80
  6. Step 6: Final answer
    x = 1,782.42

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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.