Home / 2,751.80-4,127.88-1,292.36

Finding the Fourth Proportional to 2,751.80, 4,127.88 and 1,292.36

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Solution

The fourth proportional to 2,751.80, 4,127.88 and 1,292.36 is: 1,938.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.80 : 4,127.88 = 1,292.36 : x
  2. Step 2: Convert to fraction form
    2,751.80/4,127.88 = 1,292.36/x
  3. Step 3: Cross multiply
    2,751.80x = 4,127.88 × 1,292.36
  4. Step 4: Simplify right side
    2,751.80x = 5,334,707.00
  5. Step 5: Solve for x
    x = 5,334,707.00/2,751.80
  6. Step 6: Final answer
    x = 1,938.62

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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.