Home / 3,998.29-5,512.26-2,801.67

Finding the Fourth Proportional to 3,998.29, 5,512.26 and 2,801.67

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Solution

The fourth proportional to 3,998.29, 5,512.26 and 2,801.67 is: 3,862.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.29 : 5,512.26 = 2,801.67 : x
  2. Step 2: Convert to fraction form
    3,998.29/5,512.26 = 2,801.67/x
  3. Step 3: Cross multiply
    3,998.29x = 5,512.26 × 2,801.67
  4. Step 4: Simplify right side
    3,998.29x = 15,443,533.47
  5. Step 5: Solve for x
    x = 15,443,533.47/3,998.29
  6. Step 6: Final answer
    x = 3,862.53

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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.