Home / 2,720.38-3,754.31-1,541.45

Finding the Fourth Proportional to 2,720.38, 3,754.31 and 1,541.45

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Solution

The fourth proportional to 2,720.38, 3,754.31 and 1,541.45 is: 2,127.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.38 : 3,754.31 = 1,541.45 : x
  2. Step 2: Convert to fraction form
    2,720.38/3,754.31 = 1,541.45/x
  3. Step 3: Cross multiply
    2,720.38x = 3,754.31 × 1,541.45
  4. Step 4: Simplify right side
    2,720.38x = 5,787,081.15
  5. Step 5: Solve for x
    x = 5,787,081.15/2,720.38
  6. Step 6: Final answer
    x = 2,127.31

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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.