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Finding the Fourth Proportional to 3,155.76, 4,734.36 and 1,696.32

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Solution

The fourth proportional to 3,155.76, 4,734.36 and 1,696.32 is: 2,544.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.76 : 4,734.36 = 1,696.32 : x
  2. Step 2: Convert to fraction form
    3,155.76/4,734.36 = 1,696.32/x
  3. Step 3: Cross multiply
    3,155.76x = 4,734.36 × 1,696.32
  4. Step 4: Simplify right side
    3,155.76x = 8,030,989.56
  5. Step 5: Solve for x
    x = 8,030,989.56/3,155.76
  6. Step 6: Final answer
    x = 2,544.87

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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.