Home / 2,048.55-2,827.62-1,209.21

Finding the Fourth Proportional to 2,048.55, 2,827.62 and 1,209.21

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Solution

The fourth proportional to 2,048.55, 2,827.62 and 1,209.21 is: 1,669.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.55 : 2,827.62 = 1,209.21 : x
  2. Step 2: Convert to fraction form
    2,048.55/2,827.62 = 1,209.21/x
  3. Step 3: Cross multiply
    2,048.55x = 2,827.62 × 1,209.21
  4. Step 4: Simplify right side
    2,048.55x = 3,419,186.38
  5. Step 5: Solve for x
    x = 3,419,186.38/2,048.55
  6. Step 6: Final answer
    x = 1,669.08

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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.