Home / 2,811.74-4,218.96-1,513.04

Finding the Fourth Proportional to 2,811.74, 4,218.96 and 1,513.04

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Solution

The fourth proportional to 2,811.74, 4,218.96 and 1,513.04 is: 2,270.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.74 : 4,218.96 = 1,513.04 : x
  2. Step 2: Convert to fraction form
    2,811.74/4,218.96 = 1,513.04/x
  3. Step 3: Cross multiply
    2,811.74x = 4,218.96 × 1,513.04
  4. Step 4: Simplify right side
    2,811.74x = 6,383,455.24
  5. Step 5: Solve for x
    x = 6,383,455.24/2,811.74
  6. Step 6: Final answer
    x = 2,270.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.