Home / 4,765.48-7,147.86-1,478.62

Finding the Fourth Proportional to 4,765.48, 7,147.86 and 1,478.62

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Solution

The fourth proportional to 4,765.48, 7,147.86 and 1,478.62 is: 2,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.48 : 7,147.86 = 1,478.62 : x
  2. Step 2: Convert to fraction form
    4,765.48/7,147.86 = 1,478.62/x
  3. Step 3: Cross multiply
    4,765.48x = 7,147.86 × 1,478.62
  4. Step 4: Simplify right side
    4,765.48x = 10,568,968.75
  5. Step 5: Solve for x
    x = 10,568,968.75/4,765.48
  6. Step 6: Final answer
    x = 2,217.82

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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.