Home / 6,928.16-10,390.40-1,996.48

Finding the Fourth Proportional to 6,928.16, 10,390.40 and 1,996.48

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Solution

The fourth proportional to 6,928.16, 10,390.40 and 1,996.48 is: 2,994.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.16 : 10,390.40 = 1,996.48 : x
  2. Step 2: Convert to fraction form
    6,928.16/10,390.40 = 1,996.48/x
  3. Step 3: Cross multiply
    6,928.16x = 10,390.40 × 1,996.48
  4. Step 4: Simplify right side
    6,928.16x = 20,744,225.79
  5. Step 5: Solve for x
    x = 20,744,225.79/6,928.16
  6. Step 6: Final answer
    x = 2,994.19

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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.