Home / 2,720.84-3,754.74-1,542.14

Finding the Fourth Proportional to 2,720.84, 3,754.74 and 1,542.14

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Solution

The fourth proportional to 2,720.84, 3,754.74 and 1,542.14 is: 2,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.84 : 3,754.74 = 1,542.14 : x
  2. Step 2: Convert to fraction form
    2,720.84/3,754.74 = 1,542.14/x
  3. Step 3: Cross multiply
    2,720.84x = 3,754.74 × 1,542.14
  4. Step 4: Simplify right side
    2,720.84x = 5,790,334.74
  5. Step 5: Solve for x
    x = 5,790,334.74/2,720.84
  6. Step 6: Final answer
    x = 2,128.14

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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.