Home / 1,720.87-2,579.65-550.23

Finding the Fourth Proportional to 1,720.87, 2,579.65 and 550.23

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Solution

The fourth proportional to 1,720.87, 2,579.65 and 550.23 is: 824.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.87 : 2,579.65 = 550.23 : x
  2. Step 2: Convert to fraction form
    1,720.87/2,579.65 = 550.23/x
  3. Step 3: Cross multiply
    1,720.87x = 2,579.65 × 550.23
  4. Step 4: Simplify right side
    1,720.87x = 1,419,400.82
  5. Step 5: Solve for x
    x = 1,419,400.82/1,720.87
  6. Step 6: Final answer
    x = 824.82

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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.