Home / 5,172.56-7,762.60-3,877.52

Finding the Fourth Proportional to 5,172.56, 7,762.60 and 3,877.52

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Solution

The fourth proportional to 5,172.56, 7,762.60 and 3,877.52 is: 5,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.56 : 7,762.60 = 3,877.52 : x
  2. Step 2: Convert to fraction form
    5,172.56/7,762.60 = 3,877.52/x
  3. Step 3: Cross multiply
    5,172.56x = 7,762.60 × 3,877.52
  4. Step 4: Simplify right side
    5,172.56x = 30,099,636.75
  5. Step 5: Solve for x
    x = 30,099,636.75/5,172.56
  6. Step 6: Final answer
    x = 5,819.10

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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.