Home / 3,199.30-4,414.70-1,782.81

Finding the Fourth Proportional to 3,199.30, 4,414.70 and 1,782.81

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Solution

The fourth proportional to 3,199.30, 4,414.70 and 1,782.81 is: 2,460.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.30 : 4,414.70 = 1,782.81 : x
  2. Step 2: Convert to fraction form
    3,199.30/4,414.70 = 1,782.81/x
  3. Step 3: Cross multiply
    3,199.30x = 4,414.70 × 1,782.81
  4. Step 4: Simplify right side
    3,199.30x = 7,870,575.76
  5. Step 5: Solve for x
    x = 7,870,575.76/3,199.30
  6. Step 6: Final answer
    x = 2,460.09

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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.