Home / 3,204.40-4,421.56-1,806.88

Finding the Fourth Proportional to 3,204.40, 4,421.56 and 1,806.88

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Solution

The fourth proportional to 3,204.40, 4,421.56 and 1,806.88 is: 2,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,204.40 : 4,421.56 = 1,806.88 : x
  2. Step 2: Convert to fraction form
    3,204.40/4,421.56 = 1,806.88/x
  3. Step 3: Cross multiply
    3,204.40x = 4,421.56 × 1,806.88
  4. Step 4: Simplify right side
    3,204.40x = 7,989,228.33
  5. Step 5: Solve for x
    x = 7,989,228.33/3,204.40
  6. Step 6: Final answer
    x = 2,493.21

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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.