Home / 3,911.09-5,404.32-3,200.92

Finding the Fourth Proportional to 3,911.09, 5,404.32 and 3,200.92

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Solution

The fourth proportional to 3,911.09, 5,404.32 and 3,200.92 is: 4,423.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.09 : 5,404.32 = 3,200.92 : x
  2. Step 2: Convert to fraction form
    3,911.09/5,404.32 = 3,200.92/x
  3. Step 3: Cross multiply
    3,911.09x = 5,404.32 × 3,200.92
  4. Step 4: Simplify right side
    3,911.09x = 17,298,782.46
  5. Step 5: Solve for x
    x = 17,298,782.46/3,911.09
  6. Step 6: Final answer
    x = 4,423.01

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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.