Home / 2,756.21-3,803.50-1,577.21

Finding the Fourth Proportional to 2,756.21, 3,803.50 and 1,577.21

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Solution

The fourth proportional to 2,756.21, 3,803.50 and 1,577.21 is: 2,176.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.21 : 3,803.50 = 1,577.21 : x
  2. Step 2: Convert to fraction form
    2,756.21/3,803.50 = 1,577.21/x
  3. Step 3: Cross multiply
    2,756.21x = 3,803.50 × 1,577.21
  4. Step 4: Simplify right side
    2,756.21x = 5,998,918.24
  5. Step 5: Solve for x
    x = 5,998,918.24/2,756.21
  6. Step 6: Final answer
    x = 2,176.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.