Home / 2,721.34-4,072.74-2,107.77

Finding the Fourth Proportional to 2,721.34, 4,072.74 and 2,107.77

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Solution

The fourth proportional to 2,721.34, 4,072.74 and 2,107.77 is: 3,154.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.34 : 4,072.74 = 2,107.77 : x
  2. Step 2: Convert to fraction form
    2,721.34/4,072.74 = 2,107.77/x
  3. Step 3: Cross multiply
    2,721.34x = 4,072.74 × 2,107.77
  4. Step 4: Simplify right side
    2,721.34x = 8,584,399.19
  5. Step 5: Solve for x
    x = 8,584,399.19/2,721.34
  6. Step 6: Final answer
    x = 3,154.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.