Home / 3,740.85-5,604.26-3,128.49

Finding the Fourth Proportional to 3,740.85, 5,604.26 and 3,128.49

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Solution

The fourth proportional to 3,740.85, 5,604.26 and 3,128.49 is: 4,686.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.85 : 5,604.26 = 3,128.49 : x
  2. Step 2: Convert to fraction form
    3,740.85/5,604.26 = 3,128.49/x
  3. Step 3: Cross multiply
    3,740.85x = 5,604.26 × 3,128.49
  4. Step 4: Simplify right side
    3,740.85x = 17,532,855.72
  5. Step 5: Solve for x
    x = 17,532,855.72/3,740.85
  6. Step 6: Final answer
    x = 4,686.86

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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.