Home / 4,765.80-7,145.19-3,300.78

Finding the Fourth Proportional to 4,765.80, 7,145.19 and 3,300.78

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Solution

The fourth proportional to 4,765.80, 7,145.19 and 3,300.78 is: 4,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.80 : 7,145.19 = 3,300.78 : x
  2. Step 2: Convert to fraction form
    4,765.80/7,145.19 = 3,300.78/x
  3. Step 3: Cross multiply
    4,765.80x = 7,145.19 × 3,300.78
  4. Step 4: Simplify right side
    4,765.80x = 23,584,700.25
  5. Step 5: Solve for x
    x = 23,584,700.25/4,765.80
  6. Step 6: Final answer
    x = 4,948.74

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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.