Home / 2,720.25-3,754.40-1,542.00

Finding the Fourth Proportional to 2,720.25, 3,754.40 and 1,542.00

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Solution

The fourth proportional to 2,720.25, 3,754.40 and 1,542.00 is: 2,128.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.25 : 3,754.40 = 1,542.00 : x
  2. Step 2: Convert to fraction form
    2,720.25/3,754.40 = 1,542.00/x
  3. Step 3: Cross multiply
    2,720.25x = 3,754.40 × 1,542.00
  4. Step 4: Simplify right side
    2,720.25x = 5,789,299.84
  5. Step 5: Solve for x
    x = 5,789,299.84/2,720.25
  6. Step 6: Final answer
    x = 2,128.22

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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.