Home / 3,156.40-4,734.55-1,076.39

Finding the Fourth Proportional to 3,156.40, 4,734.55 and 1,076.39

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Solution

The fourth proportional to 3,156.40, 4,734.55 and 1,076.39 is: 1,614.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.40 : 4,734.55 = 1,076.39 : x
  2. Step 2: Convert to fraction form
    3,156.40/4,734.55 = 1,076.39/x
  3. Step 3: Cross multiply
    3,156.40x = 4,734.55 × 1,076.39
  4. Step 4: Simplify right side
    3,156.40x = 5,096,195.91
  5. Step 5: Solve for x
    x = 5,096,195.91/3,156.40
  6. Step 6: Final answer
    x = 1,614.56

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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.