Home / 1,456.80-2,182.16-1,091.09

Finding the Fourth Proportional to 1,456.80, 2,182.16 and 1,091.09

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Solution

The fourth proportional to 1,456.80, 2,182.16 and 1,091.09 is: 1,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.80 : 2,182.16 = 1,091.09 : x
  2. Step 2: Convert to fraction form
    1,456.80/2,182.16 = 1,091.09/x
  3. Step 3: Cross multiply
    1,456.80x = 2,182.16 × 1,091.09
  4. Step 4: Simplify right side
    1,456.80x = 2,380,916.59
  5. Step 5: Solve for x
    x = 2,380,916.59/1,456.80
  6. Step 6: Final answer
    x = 1,634.35

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1.5x scale

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.