Home / 1,682.17-2,519.34-1,623.78

Finding the Fourth Proportional to 1,682.17, 2,519.34 and 1,623.78

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Solution

The fourth proportional to 1,682.17, 2,519.34 and 1,623.78 is: 2,431.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.17 : 2,519.34 = 1,623.78 : x
  2. Step 2: Convert to fraction form
    1,682.17/2,519.34 = 1,623.78/x
  3. Step 3: Cross multiply
    1,682.17x = 2,519.34 × 1,623.78
  4. Step 4: Simplify right side
    1,682.17x = 4,090,847.82
  5. Step 5: Solve for x
    x = 4,090,847.82/1,682.17
  6. Step 6: Final answer
    x = 2,431.89

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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.