Home / 3,172.50-4,759.80-1,224.72

Finding the Fourth Proportional to 3,172.50, 4,759.80 and 1,224.72

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Solution

The fourth proportional to 3,172.50, 4,759.80 and 1,224.72 is: 1,837.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.50 : 4,759.80 = 1,224.72 : x
  2. Step 2: Convert to fraction form
    3,172.50/4,759.80 = 1,224.72/x
  3. Step 3: Cross multiply
    3,172.50x = 4,759.80 × 1,224.72
  4. Step 4: Simplify right side
    3,172.50x = 5,829,422.26
  5. Step 5: Solve for x
    x = 5,829,422.26/3,172.50
  6. Step 6: Final answer
    x = 1,837.49

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1.5x scale

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.