Home / 2,721.72-3,759.66-2,491.32

Finding the Fourth Proportional to 2,721.72, 3,759.66 and 2,491.32

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Solution

The fourth proportional to 2,721.72, 3,759.66 and 2,491.32 is: 3,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.72 : 3,759.66 = 2,491.32 : x
  2. Step 2: Convert to fraction form
    2,721.72/3,759.66 = 2,491.32/x
  3. Step 3: Cross multiply
    2,721.72x = 3,759.66 × 2,491.32
  4. Step 4: Simplify right side
    2,721.72x = 9,366,516.15
  5. Step 5: Solve for x
    x = 9,366,516.15/2,721.72
  6. Step 6: Final answer
    x = 3,441.40

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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.