Home / 3,790.20-5,225.76-3,161.64

Finding the Fourth Proportional to 3,790.20, 5,225.76 and 3,161.64

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Solution

The fourth proportional to 3,790.20, 5,225.76 and 3,161.64 is: 4,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.20 : 5,225.76 = 3,161.64 : x
  2. Step 2: Convert to fraction form
    3,790.20/5,225.76 = 3,161.64/x
  3. Step 3: Cross multiply
    3,790.20x = 5,225.76 × 3,161.64
  4. Step 4: Simplify right side
    3,790.20x = 16,521,971.85
  5. Step 5: Solve for x
    x = 16,521,971.85/3,790.20
  6. Step 6: Final answer
    x = 4,359.13

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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.