Home / 3,172.88-4,759.29-1,223.72

Finding the Fourth Proportional to 3,172.88, 4,759.29 and 1,223.72

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Solution

The fourth proportional to 3,172.88, 4,759.29 and 1,223.72 is: 1,835.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.88 : 4,759.29 = 1,223.72 : x
  2. Step 2: Convert to fraction form
    3,172.88/4,759.29 = 1,223.72/x
  3. Step 3: Cross multiply
    3,172.88x = 4,759.29 × 1,223.72
  4. Step 4: Simplify right side
    3,172.88x = 5,824,038.36
  5. Step 5: Solve for x
    x = 5,824,038.36/3,172.88
  6. Step 6: Final answer
    x = 1,835.57

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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.