Home / 3,156.40-4,734.60-1,512.56

Finding the Fourth Proportional to 3,156.40, 4,734.60 and 1,512.56

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Solution

The fourth proportional to 3,156.40, 4,734.60 and 1,512.56 is: 2,268.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.40 : 4,734.60 = 1,512.56 : x
  2. Step 2: Convert to fraction form
    3,156.40/4,734.60 = 1,512.56/x
  3. Step 3: Cross multiply
    3,156.40x = 4,734.60 × 1,512.56
  4. Step 4: Simplify right side
    3,156.40x = 7,161,366.58
  5. Step 5: Solve for x
    x = 7,161,366.58/3,156.40
  6. Step 6: Final answer
    x = 2,268.84

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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.