Home / 5,131.22-7,081.05-2,773.35

Finding the Fourth Proportional to 5,131.22, 7,081.05 and 2,773.35

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Solution

The fourth proportional to 5,131.22, 7,081.05 and 2,773.35 is: 3,827.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.22 : 7,081.05 = 2,773.35 : x
  2. Step 2: Convert to fraction form
    5,131.22/7,081.05 = 2,773.35/x
  3. Step 3: Cross multiply
    5,131.22x = 7,081.05 × 2,773.35
  4. Step 4: Simplify right side
    5,131.22x = 19,638,240.42
  5. Step 5: Solve for x
    x = 19,638,240.42/5,131.22
  6. Step 6: Final answer
    x = 3,827.21

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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.