Home / 5,055-7,579.74-2,717.78

Finding the Fourth Proportional to 5,055, 7,579.74 and 2,717.78

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Solution

The fourth proportional to 5,055, 7,579.74 and 2,717.78 is: 4,075.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055 : 7,579.74 = 2,717.78 : x
  2. Step 2: Convert to fraction form
    5,055/7,579.74 = 2,717.78/x
  3. Step 3: Cross multiply
    5,055x = 7,579.74 × 2,717.78
  4. Step 4: Simplify right side
    5,055x = 20,600,065.78
  5. Step 5: Solve for x
    x = 20,600,065.78/5,055
  6. Step 6: Final answer
    x = 4,075.19

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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.