Home / 3,124.20-4,311.83-3,021.64

Finding the Fourth Proportional to 3,124.20, 4,311.83 and 3,021.64

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Solution

The fourth proportional to 3,124.20, 4,311.83 and 3,021.64 is: 4,170.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.20 : 4,311.83 = 3,021.64 : x
  2. Step 2: Convert to fraction form
    3,124.20/4,311.83 = 3,021.64/x
  3. Step 3: Cross multiply
    3,124.20x = 4,311.83 × 3,021.64
  4. Step 4: Simplify right side
    3,124.20x = 13,028,782.89
  5. Step 5: Solve for x
    x = 13,028,782.89/3,124.20
  6. Step 6: Final answer
    x = 4,170.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.