Home / 2,813.96-3,883.46-1,635.40

Finding the Fourth Proportional to 2,813.96, 3,883.46 and 1,635.40

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Solution

The fourth proportional to 2,813.96, 3,883.46 and 1,635.40 is: 2,256.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.96 : 3,883.46 = 1,635.40 : x
  2. Step 2: Convert to fraction form
    2,813.96/3,883.46 = 1,635.40/x
  3. Step 3: Cross multiply
    2,813.96x = 3,883.46 × 1,635.40
  4. Step 4: Simplify right side
    2,813.96x = 6,351,010.48
  5. Step 5: Solve for x
    x = 6,351,010.48/2,813.96
  6. Step 6: Final answer
    x = 2,256.97

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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.