Home / 2,813.87-3,883.23-1,554.97

Finding the Fourth Proportional to 2,813.87, 3,883.23 and 1,554.97

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Solution

The fourth proportional to 2,813.87, 3,883.23 and 1,554.97 is: 2,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.87 : 3,883.23 = 1,554.97 : x
  2. Step 2: Convert to fraction form
    2,813.87/3,883.23 = 1,554.97/x
  3. Step 3: Cross multiply
    2,813.87x = 3,883.23 × 1,554.97
  4. Step 4: Simplify right side
    2,813.87x = 6,038,306.15
  5. Step 5: Solve for x
    x = 6,038,306.15/2,813.87
  6. Step 6: Final answer
    x = 2,145.91

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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.