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Finding the Fourth Proportional to 2,751.99, 4,127.99 and 804.21

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Solution

The fourth proportional to 2,751.99, 4,127.99 and 804.21 is: 1,206.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.99 : 4,127.99 = 804.21 : x
  2. Step 2: Convert to fraction form
    2,751.99/4,127.99 = 804.21/x
  3. Step 3: Cross multiply
    2,751.99x = 4,127.99 × 804.21
  4. Step 4: Simplify right side
    2,751.99x = 3,319,766.82
  5. Step 5: Solve for x
    x = 3,319,766.82/2,751.99
  6. Step 6: Final answer
    x = 1,206.32

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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.