Home / 6,147.82-9,215.49-2,640.11

Finding the Fourth Proportional to 6,147.82, 9,215.49 and 2,640.11

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Solution

The fourth proportional to 6,147.82, 9,215.49 and 2,640.11 is: 3,957.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,147.82 : 9,215.49 = 2,640.11 : x
  2. Step 2: Convert to fraction form
    6,147.82/9,215.49 = 2,640.11/x
  3. Step 3: Cross multiply
    6,147.82x = 9,215.49 × 2,640.11
  4. Step 4: Simplify right side
    6,147.82x = 24,329,907.30
  5. Step 5: Solve for x
    x = 24,329,907.30/6,147.82
  6. Step 6: Final answer
    x = 3,957.49

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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.