Home / 3,168.12-4,371.60-1,770.76

Finding the Fourth Proportional to 3,168.12, 4,371.60 and 1,770.76

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Solution

The fourth proportional to 3,168.12, 4,371.60 and 1,770.76 is: 2,443.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.12 : 4,371.60 = 1,770.76 : x
  2. Step 2: Convert to fraction form
    3,168.12/4,371.60 = 1,770.76/x
  3. Step 3: Cross multiply
    3,168.12x = 4,371.60 × 1,770.76
  4. Step 4: Simplify right side
    3,168.12x = 7,741,054.42
  5. Step 5: Solve for x
    x = 7,741,054.42/3,168.12
  6. Step 6: Final answer
    x = 2,443.42

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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.