Home / 2,155.58-3,238.26-1,863.98

Finding the Fourth Proportional to 2,155.58, 3,238.26 and 1,863.98

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Solution

The fourth proportional to 2,155.58, 3,238.26 and 1,863.98 is: 2,800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.58 : 3,238.26 = 1,863.98 : x
  2. Step 2: Convert to fraction form
    2,155.58/3,238.26 = 1,863.98/x
  3. Step 3: Cross multiply
    2,155.58x = 3,238.26 × 1,863.98
  4. Step 4: Simplify right side
    2,155.58x = 6,036,051.87
  5. Step 5: Solve for x
    x = 6,036,051.87/2,155.58
  6. Step 6: Final answer
    x = 2,800.20

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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.