Home / 2,756.05-4,137.99-1,720.42

Finding the Fourth Proportional to 2,756.05, 4,137.99 and 1,720.42

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Solution

The fourth proportional to 2,756.05, 4,137.99 and 1,720.42 is: 2,583.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.05 : 4,137.99 = 1,720.42 : x
  2. Step 2: Convert to fraction form
    2,756.05/4,137.99 = 1,720.42/x
  3. Step 3: Cross multiply
    2,756.05x = 4,137.99 × 1,720.42
  4. Step 4: Simplify right side
    2,756.05x = 7,119,080.76
  5. Step 5: Solve for x
    x = 7,119,080.76/2,756.05
  6. Step 6: Final answer
    x = 2,583.07

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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.