Home / 4,212.09-5,811.52-2,720.07

Finding the Fourth Proportional to 4,212.09, 5,811.52 and 2,720.07

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Solution

The fourth proportional to 4,212.09, 5,811.52 and 2,720.07 is: 3,752.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.09 : 5,811.52 = 2,720.07 : x
  2. Step 2: Convert to fraction form
    4,212.09/5,811.52 = 2,720.07/x
  3. Step 3: Cross multiply
    4,212.09x = 5,811.52 × 2,720.07
  4. Step 4: Simplify right side
    4,212.09x = 15,807,759.14
  5. Step 5: Solve for x
    x = 15,807,759.14/4,212.09
  6. Step 6: Final answer
    x = 3,752.95

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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.