Home / 3,126.55-4,301.82-2,705.56

Finding the Fourth Proportional to 3,126.55, 4,301.82 and 2,705.56

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Solution

The fourth proportional to 3,126.55, 4,301.82 and 2,705.56 is: 3,722.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.55 : 4,301.82 = 2,705.56 : x
  2. Step 2: Convert to fraction form
    3,126.55/4,301.82 = 2,705.56/x
  3. Step 3: Cross multiply
    3,126.55x = 4,301.82 × 2,705.56
  4. Step 4: Simplify right side
    3,126.55x = 11,638,832.12
  5. Step 5: Solve for x
    x = 11,638,832.12/3,126.55
  6. Step 6: Final answer
    x = 3,722.58

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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.