Home / 3,715.85-5,571.25-1,768.25

Finding the Fourth Proportional to 3,715.85, 5,571.25 and 1,768.25

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Solution

The fourth proportional to 3,715.85, 5,571.25 and 1,768.25 is: 2,651.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.85 : 5,571.25 = 1,768.25 : x
  2. Step 2: Convert to fraction form
    3,715.85/5,571.25 = 1,768.25/x
  3. Step 3: Cross multiply
    3,715.85x = 5,571.25 × 1,768.25
  4. Step 4: Simplify right side
    3,715.85x = 9,851,362.81
  5. Step 5: Solve for x
    x = 9,851,362.81/3,715.85
  6. Step 6: Final answer
    x = 2,651.17

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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.