Home / 3,918.84-5,869.98-2,680.44

Finding the Fourth Proportional to 3,918.84, 5,869.98 and 2,680.44

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Solution

The fourth proportional to 3,918.84, 5,869.98 and 2,680.44 is: 4,015.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.84 : 5,869.98 = 2,680.44 : x
  2. Step 2: Convert to fraction form
    3,918.84/5,869.98 = 2,680.44/x
  3. Step 3: Cross multiply
    3,918.84x = 5,869.98 × 2,680.44
  4. Step 4: Simplify right side
    3,918.84x = 15,734,129.19
  5. Step 5: Solve for x
    x = 15,734,129.19/3,918.84
  6. Step 6: Final answer
    x = 4,015.00

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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.