Home / 4,120.75-6,182.84-1,657.32

Finding the Fourth Proportional to 4,120.75, 6,182.84 and 1,657.32

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Solution

The fourth proportional to 4,120.75, 6,182.84 and 1,657.32 is: 2,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.75 : 6,182.84 = 1,657.32 : x
  2. Step 2: Convert to fraction form
    4,120.75/6,182.84 = 1,657.32/x
  3. Step 3: Cross multiply
    4,120.75x = 6,182.84 × 1,657.32
  4. Step 4: Simplify right side
    4,120.75x = 10,246,944.39
  5. Step 5: Solve for x
    x = 10,246,944.39/4,120.75
  6. Step 6: Final answer
    x = 2,486.67

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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.