Home / 1,790.60-2,685.43-1,205.27

Finding the Fourth Proportional to 1,790.60, 2,685.43 and 1,205.27

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Solution

The fourth proportional to 1,790.60, 2,685.43 and 1,205.27 is: 1,807.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.60 : 2,685.43 = 1,205.27 : x
  2. Step 2: Convert to fraction form
    1,790.60/2,685.43 = 1,205.27/x
  3. Step 3: Cross multiply
    1,790.60x = 2,685.43 × 1,205.27
  4. Step 4: Simplify right side
    1,790.60x = 3,236,651.78
  5. Step 5: Solve for x
    x = 3,236,651.78/1,790.60
  6. Step 6: Final answer
    x = 1,807.58

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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.