Home / 2,720.89-3,755.16-1,541.74

Finding the Fourth Proportional to 2,720.89, 3,755.16 and 1,541.74

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Solution

The fourth proportional to 2,720.89, 3,755.16 and 1,541.74 is: 2,127.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.89 : 3,755.16 = 1,541.74 : x
  2. Step 2: Convert to fraction form
    2,720.89/3,755.16 = 1,541.74/x
  3. Step 3: Cross multiply
    2,720.89x = 3,755.16 × 1,541.74
  4. Step 4: Simplify right side
    2,720.89x = 5,789,480.38
  5. Step 5: Solve for x
    x = 5,789,480.38/2,720.89
  6. Step 6: Final answer
    x = 2,127.79

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1.5x scale

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.