Home / 3,716.79-5,577.99-1,378.22

Finding the Fourth Proportional to 3,716.79, 5,577.99 and 1,378.22

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Solution

The fourth proportional to 3,716.79, 5,577.99 and 1,378.22 is: 2,068.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.79 : 5,577.99 = 1,378.22 : x
  2. Step 2: Convert to fraction form
    3,716.79/5,577.99 = 1,378.22/x
  3. Step 3: Cross multiply
    3,716.79x = 5,577.99 × 1,378.22
  4. Step 4: Simplify right side
    3,716.79x = 7,687,669.49
  5. Step 5: Solve for x
    x = 7,687,669.49/3,716.79
  6. Step 6: Final answer
    x = 2,068.36

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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.