Home / 3,199.13-4,414.75-1,782.78

Finding the Fourth Proportional to 3,199.13, 4,414.75 and 1,782.78

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Solution

The fourth proportional to 3,199.13, 4,414.75 and 1,782.78 is: 2,460.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.13 : 4,414.75 = 1,782.78 : x
  2. Step 2: Convert to fraction form
    3,199.13/4,414.75 = 1,782.78/x
  3. Step 3: Cross multiply
    3,199.13x = 4,414.75 × 1,782.78
  4. Step 4: Simplify right side
    3,199.13x = 7,870,528.01
  5. Step 5: Solve for x
    x = 7,870,528.01/3,199.13
  6. Step 6: Final answer
    x = 2,460.21

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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.