Home / 2,813.38-3,882.44-1,554.51

Finding the Fourth Proportional to 2,813.38, 3,882.44 and 1,554.51

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Solution

The fourth proportional to 2,813.38, 3,882.44 and 1,554.51 is: 2,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.38 : 3,882.44 = 1,554.51 : x
  2. Step 2: Convert to fraction form
    2,813.38/3,882.44 = 1,554.51/x
  3. Step 3: Cross multiply
    2,813.38x = 3,882.44 × 1,554.51
  4. Step 4: Simplify right side
    2,813.38x = 6,035,310.25
  5. Step 5: Solve for x
    x = 6,035,310.25/2,813.38
  6. Step 6: Final answer
    x = 2,145.22

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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.