Home / 4,982.72-7,477.80-1,865.60

Finding the Fourth Proportional to 4,982.72, 7,477.80 and 1,865.60

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Solution

The fourth proportional to 4,982.72, 7,477.80 and 1,865.60 is: 2,799.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,982.72 : 7,477.80 = 1,865.60 : x
  2. Step 2: Convert to fraction form
    4,982.72/7,477.80 = 1,865.60/x
  3. Step 3: Cross multiply
    4,982.72x = 7,477.80 × 1,865.60
  4. Step 4: Simplify right side
    4,982.72x = 13,950,583.68
  5. Step 5: Solve for x
    x = 13,950,583.68/4,982.72
  6. Step 6: Final answer
    x = 2,799.79

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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.