Home / 3,120.45-4,673.73-2,877.36

Finding the Fourth Proportional to 3,120.45, 4,673.73 and 2,877.36

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Solution

The fourth proportional to 3,120.45, 4,673.73 and 2,877.36 is: 4,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.45 : 4,673.73 = 2,877.36 : x
  2. Step 2: Convert to fraction form
    3,120.45/4,673.73 = 2,877.36/x
  3. Step 3: Cross multiply
    3,120.45x = 4,673.73 × 2,877.36
  4. Step 4: Simplify right side
    3,120.45x = 13,447,991.32
  5. Step 5: Solve for x
    x = 13,447,991.32/3,120.45
  6. Step 6: Final answer
    x = 4,309.64

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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.