Home / 3,829.70-5,739.15-1,877.60

Finding the Fourth Proportional to 3,829.70, 5,739.15 and 1,877.60

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Solution

The fourth proportional to 3,829.70, 5,739.15 and 1,877.60 is: 2,813.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829.70 : 5,739.15 = 1,877.60 : x
  2. Step 2: Convert to fraction form
    3,829.70/5,739.15 = 1,877.60/x
  3. Step 3: Cross multiply
    3,829.70x = 5,739.15 × 1,877.60
  4. Step 4: Simplify right side
    3,829.70x = 10,775,828.04
  5. Step 5: Solve for x
    x = 10,775,828.04/3,829.70
  6. Step 6: Final answer
    x = 2,813.75

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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.