Home / 2,806.29-3,871.08-1,627.20

Finding the Fourth Proportional to 2,806.29, 3,871.08 and 1,627.20

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Solution

The fourth proportional to 2,806.29, 3,871.08 and 1,627.20 is: 2,244.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.29 : 3,871.08 = 1,627.20 : x
  2. Step 2: Convert to fraction form
    2,806.29/3,871.08 = 1,627.20/x
  3. Step 3: Cross multiply
    2,806.29x = 3,871.08 × 1,627.20
  4. Step 4: Simplify right side
    2,806.29x = 6,299,021.38
  5. Step 5: Solve for x
    x = 6,299,021.38/2,806.29
  6. Step 6: Final answer
    x = 2,244.61

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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.