Home / 2,805.46-3,871.66-1,627.18

Finding the Fourth Proportional to 2,805.46, 3,871.66 and 1,627.18

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Solution

The fourth proportional to 2,805.46, 3,871.66 and 1,627.18 is: 2,245.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.46 : 3,871.66 = 1,627.18 : x
  2. Step 2: Convert to fraction form
    2,805.46/3,871.66 = 1,627.18/x
  3. Step 3: Cross multiply
    2,805.46x = 3,871.66 × 1,627.18
  4. Step 4: Simplify right side
    2,805.46x = 6,299,887.72
  5. Step 5: Solve for x
    x = 6,299,887.72/2,805.46
  6. Step 6: Final answer
    x = 2,245.58

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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.