Home / 2,813.16-3,882.28-1,554.21

Finding the Fourth Proportional to 2,813.16, 3,882.28 and 1,554.21

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Solution

The fourth proportional to 2,813.16, 3,882.28 and 1,554.21 is: 2,144.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.16 : 3,882.28 = 1,554.21 : x
  2. Step 2: Convert to fraction form
    2,813.16/3,882.28 = 1,554.21/x
  3. Step 3: Cross multiply
    2,813.16x = 3,882.28 × 1,554.21
  4. Step 4: Simplify right side
    2,813.16x = 6,033,888.35
  5. Step 5: Solve for x
    x = 6,033,888.35/2,813.16
  6. Step 6: Final answer
    x = 2,144.88

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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.