Home / 1,753.43-2,629.89-520.61

Finding the Fourth Proportional to 1,753.43, 2,629.89 and 520.61

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Solution

The fourth proportional to 1,753.43, 2,629.89 and 520.61 is: 780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.43 : 2,629.89 = 520.61 : x
  2. Step 2: Convert to fraction form
    1,753.43/2,629.89 = 520.61/x
  3. Step 3: Cross multiply
    1,753.43x = 2,629.89 × 520.61
  4. Step 4: Simplify right side
    1,753.43x = 1,369,147.03
  5. Step 5: Solve for x
    x = 1,369,147.03/1,753.43
  6. Step 6: Final answer
    x = 780.84

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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.