Home / 2,203.85-3,041.30-1,209.12

Finding the Fourth Proportional to 2,203.85, 3,041.30 and 1,209.12

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Solution

The fourth proportional to 2,203.85, 3,041.30 and 1,209.12 is: 1,668.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.85 : 3,041.30 = 1,209.12 : x
  2. Step 2: Convert to fraction form
    2,203.85/3,041.30 = 1,209.12/x
  3. Step 3: Cross multiply
    2,203.85x = 3,041.30 × 1,209.12
  4. Step 4: Simplify right side
    2,203.85x = 3,677,299.68
  5. Step 5: Solve for x
    x = 3,677,299.68/2,203.85
  6. Step 6: Final answer
    x = 1,668.58

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1.5x scale

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.