Home / 7,918.43-11,877.63-2,075

Finding the Fourth Proportional to 7,918.43, 11,877.63 and 2,075

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Solution

The fourth proportional to 7,918.43, 11,877.63 and 2,075 is: 3,112.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.43 : 11,877.63 = 2,075 : x
  2. Step 2: Convert to fraction form
    7,918.43/11,877.63 = 2,075/x
  3. Step 3: Cross multiply
    7,918.43x = 11,877.63 × 2,075
  4. Step 4: Simplify right side
    7,918.43x = 24,646,082.25
  5. Step 5: Solve for x
    x = 24,646,082.25/7,918.43
  6. Step 6: Final answer
    x = 3,112.50

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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.