Home / 3,713.57-5,571.80-1,405.25

Finding the Fourth Proportional to 3,713.57, 5,571.80 and 1,405.25

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Solution

The fourth proportional to 3,713.57, 5,571.80 and 1,405.25 is: 2,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.57 : 5,571.80 = 1,405.25 : x
  2. Step 2: Convert to fraction form
    3,713.57/5,571.80 = 1,405.25/x
  3. Step 3: Cross multiply
    3,713.57x = 5,571.80 × 1,405.25
  4. Step 4: Simplify right side
    3,713.57x = 7,829,771.95
  5. Step 5: Solve for x
    x = 7,829,771.95/3,713.57
  6. Step 6: Final answer
    x = 2,108.42

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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.