Home / 2,048.12-2,825.75-1,209.11

Finding the Fourth Proportional to 2,048.12, 2,825.75 and 1,209.11

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Solution

The fourth proportional to 2,048.12, 2,825.75 and 1,209.11 is: 1,668.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.12 : 2,825.75 = 1,209.11 : x
  2. Step 2: Convert to fraction form
    2,048.12/2,825.75 = 1,209.11/x
  3. Step 3: Cross multiply
    2,048.12x = 2,825.75 × 1,209.11
  4. Step 4: Simplify right side
    2,048.12x = 3,416,635.52
  5. Step 5: Solve for x
    x = 3,416,635.52/2,048.12
  6. Step 6: Final answer
    x = 1,668.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.