Home / 2,813.66-3,882.86-1,554.75

Finding the Fourth Proportional to 2,813.66, 3,882.86 and 1,554.75

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Solution

The fourth proportional to 2,813.66, 3,882.86 and 1,554.75 is: 2,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.66 : 3,882.86 = 1,554.75 : x
  2. Step 2: Convert to fraction form
    2,813.66/3,882.86 = 1,554.75/x
  3. Step 3: Cross multiply
    2,813.66x = 3,882.86 × 1,554.75
  4. Step 4: Simplify right side
    2,813.66x = 6,036,868.81
  5. Step 5: Solve for x
    x = 6,036,868.81/2,813.66
  6. Step 6: Final answer
    x = 2,145.56

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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.