Home / 4,938.55-6,811.86-3,172.30

Finding the Fourth Proportional to 4,938.55, 6,811.86 and 3,172.30

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Solution

The fourth proportional to 4,938.55, 6,811.86 and 3,172.30 is: 4,375.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.55 : 6,811.86 = 3,172.30 : x
  2. Step 2: Convert to fraction form
    4,938.55/6,811.86 = 3,172.30/x
  3. Step 3: Cross multiply
    4,938.55x = 6,811.86 × 3,172.30
  4. Step 4: Simplify right side
    4,938.55x = 21,609,263.48
  5. Step 5: Solve for x
    x = 21,609,263.48/4,938.55
  6. Step 6: Final answer
    x = 4,375.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.