Home / 1,735.20-2,600.96-809.68

Finding the Fourth Proportional to 1,735.20, 2,600.96 and 809.68

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Solution

The fourth proportional to 1,735.20, 2,600.96 and 809.68 is: 1,213.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,735.20 : 2,600.96 = 809.68 : x
  2. Step 2: Convert to fraction form
    1,735.20/2,600.96 = 809.68/x
  3. Step 3: Cross multiply
    1,735.20x = 2,600.96 × 809.68
  4. Step 4: Simplify right side
    1,735.20x = 2,105,945.29
  5. Step 5: Solve for x
    x = 2,105,945.29/1,735.20
  6. Step 6: Final answer
    x = 1,213.66

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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.