Home / 1,629.20-2,443.70-704.11

Finding the Fourth Proportional to 1,629.20, 2,443.70 and 704.11

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Solution

The fourth proportional to 1,629.20, 2,443.70 and 704.11 is: 1,056.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.20 : 2,443.70 = 704.11 : x
  2. Step 2: Convert to fraction form
    1,629.20/2,443.70 = 704.11/x
  3. Step 3: Cross multiply
    1,629.20x = 2,443.70 × 704.11
  4. Step 4: Simplify right side
    1,629.20x = 1,720,617.87
  5. Step 5: Solve for x
    x = 1,720,617.87/1,629.20
  6. Step 6: Final answer
    x = 1,056.11

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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.