Home / 3,203.28-4,420.68-1,806.12

Finding the Fourth Proportional to 3,203.28, 4,420.68 and 1,806.12

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Solution

The fourth proportional to 3,203.28, 4,420.68 and 1,806.12 is: 2,492.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,203.28 : 4,420.68 = 1,806.12 : x
  2. Step 2: Convert to fraction form
    3,203.28/4,420.68 = 1,806.12/x
  3. Step 3: Cross multiply
    3,203.28x = 4,420.68 × 1,806.12
  4. Step 4: Simplify right side
    3,203.28x = 7,984,278.56
  5. Step 5: Solve for x
    x = 7,984,278.56/3,203.28
  6. Step 6: Final answer
    x = 2,492.53

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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.