Home / 4,865.76-7,284.85-3,782.79

Finding the Fourth Proportional to 4,865.76, 7,284.85 and 3,782.79

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Solution

The fourth proportional to 4,865.76, 7,284.85 and 3,782.79 is: 5,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,865.76 : 7,284.85 = 3,782.79 : x
  2. Step 2: Convert to fraction form
    4,865.76/7,284.85 = 3,782.79/x
  3. Step 3: Cross multiply
    4,865.76x = 7,284.85 × 3,782.79
  4. Step 4: Simplify right side
    4,865.76x = 27,557,057.73
  5. Step 5: Solve for x
    x = 27,557,057.73/4,865.76
  6. Step 6: Final answer
    x = 5,663.46

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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.