Home / 3,039.75-4,193.43-1,780.02

Finding the Fourth Proportional to 3,039.75, 4,193.43 and 1,780.02

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Solution

The fourth proportional to 3,039.75, 4,193.43 and 1,780.02 is: 2,455.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.75 : 4,193.43 = 1,780.02 : x
  2. Step 2: Convert to fraction form
    3,039.75/4,193.43 = 1,780.02/x
  3. Step 3: Cross multiply
    3,039.75x = 4,193.43 × 1,780.02
  4. Step 4: Simplify right side
    3,039.75x = 7,464,389.27
  5. Step 5: Solve for x
    x = 7,464,389.27/3,039.75
  6. Step 6: Final answer
    x = 2,455.59

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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.