Home / 3,156.75-4,731.51-1,770.72

Finding the Fourth Proportional to 3,156.75, 4,731.51 and 1,770.72

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Solution

The fourth proportional to 3,156.75, 4,731.51 and 1,770.72 is: 2,654.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.75 : 4,731.51 = 1,770.72 : x
  2. Step 2: Convert to fraction form
    3,156.75/4,731.51 = 1,770.72/x
  3. Step 3: Cross multiply
    3,156.75x = 4,731.51 × 1,770.72
  4. Step 4: Simplify right side
    3,156.75x = 8,378,179.39
  5. Step 5: Solve for x
    x = 8,378,179.39/3,156.75
  6. Step 6: Final answer
    x = 2,654.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.