Home / 2,854.49-4,282.38-1,211.09

Finding the Fourth Proportional to 2,854.49, 4,282.38 and 1,211.09

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Solution

The fourth proportional to 2,854.49, 4,282.38 and 1,211.09 is: 1,816.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.49 : 4,282.38 = 1,211.09 : x
  2. Step 2: Convert to fraction form
    2,854.49/4,282.38 = 1,211.09/x
  3. Step 3: Cross multiply
    2,854.49x = 4,282.38 × 1,211.09
  4. Step 4: Simplify right side
    2,854.49x = 5,186,326.18
  5. Step 5: Solve for x
    x = 5,186,326.18/2,854.49
  6. Step 6: Final answer
    x = 1,816.90

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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.