Home / 2,751.12-4,119.75-1,823.90

Finding the Fourth Proportional to 2,751.12, 4,119.75 and 1,823.90

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Solution

The fourth proportional to 2,751.12, 4,119.75 and 1,823.90 is: 2,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.12 : 4,119.75 = 1,823.90 : x
  2. Step 2: Convert to fraction form
    2,751.12/4,119.75 = 1,823.90/x
  3. Step 3: Cross multiply
    2,751.12x = 4,119.75 × 1,823.90
  4. Step 4: Simplify right side
    2,751.12x = 7,513,991.43
  5. Step 5: Solve for x
    x = 7,513,991.43/2,751.12
  6. Step 6: Final answer
    x = 2,731.25

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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.