Home / 3,812.30-5,260.82-2,219

Finding the Fourth Proportional to 3,812.30, 5,260.82 and 2,219

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Solution

The fourth proportional to 3,812.30, 5,260.82 and 2,219 is: 3,062.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.30 : 5,260.82 = 2,219 : x
  2. Step 2: Convert to fraction form
    3,812.30/5,260.82 = 2,219/x
  3. Step 3: Cross multiply
    3,812.30x = 5,260.82 × 2,219
  4. Step 4: Simplify right side
    3,812.30x = 11,673,759.58
  5. Step 5: Solve for x
    x = 11,673,759.58/3,812.30
  6. Step 6: Final answer
    x = 3,062.13

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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.