Home / 2,782.46-4,174.37-834.66

Finding the Fourth Proportional to 2,782.46, 4,174.37 and 834.66

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Solution

The fourth proportional to 2,782.46, 4,174.37 and 834.66 is: 1,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.46 : 4,174.37 = 834.66 : x
  2. Step 2: Convert to fraction form
    2,782.46/4,174.37 = 834.66/x
  3. Step 3: Cross multiply
    2,782.46x = 4,174.37 × 834.66
  4. Step 4: Simplify right side
    2,782.46x = 3,484,179.66
  5. Step 5: Solve for x
    x = 3,484,179.66/2,782.46
  6. Step 6: Final answer
    x = 1,252.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.