Home / 6,928.54-10,390.39-1,996.86

Finding the Fourth Proportional to 6,928.54, 10,390.39 and 1,996.86

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Solution

The fourth proportional to 6,928.54, 10,390.39 and 1,996.86 is: 2,994.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.54 : 10,390.39 = 1,996.86 : x
  2. Step 2: Convert to fraction form
    6,928.54/10,390.39 = 1,996.86/x
  3. Step 3: Cross multiply
    6,928.54x = 10,390.39 × 1,996.86
  4. Step 4: Simplify right side
    6,928.54x = 20,748,154.18
  5. Step 5: Solve for x
    x = 20,748,154.18/6,928.54
  6. Step 6: Final answer
    x = 2,994.59

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1.5x scale

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.