Home / 1,940.58-2,675.68-1,585.20

Finding the Fourth Proportional to 1,940.58, 2,675.68 and 1,585.20

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Solution

The fourth proportional to 1,940.58, 2,675.68 and 1,585.20 is: 2,185.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.58 : 2,675.68 = 1,585.20 : x
  2. Step 2: Convert to fraction form
    1,940.58/2,675.68 = 1,585.20/x
  3. Step 3: Cross multiply
    1,940.58x = 2,675.68 × 1,585.20
  4. Step 4: Simplify right side
    1,940.58x = 4,241,487.94
  5. Step 5: Solve for x
    x = 4,241,487.94/1,940.58
  6. Step 6: Final answer
    x = 2,185.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.