Home / 3,777.45-5,660.40-2,540.28

Finding the Fourth Proportional to 3,777.45, 5,660.40 and 2,540.28

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Solution

The fourth proportional to 3,777.45, 5,660.40 and 2,540.28 is: 3,806.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.45 : 5,660.40 = 2,540.28 : x
  2. Step 2: Convert to fraction form
    3,777.45/5,660.40 = 2,540.28/x
  3. Step 3: Cross multiply
    3,777.45x = 5,660.40 × 2,540.28
  4. Step 4: Simplify right side
    3,777.45x = 14,379,000.91
  5. Step 5: Solve for x
    x = 14,379,000.91/3,777.45
  6. Step 6: Final answer
    x = 3,806.54

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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.