Home / 6,928.14-10,396.65-3,420.06

Finding the Fourth Proportional to 6,928.14, 10,396.65 and 3,420.06

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Solution

The fourth proportional to 6,928.14, 10,396.65 and 3,420.06 is: 5,132.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.14 : 10,396.65 = 3,420.06 : x
  2. Step 2: Convert to fraction form
    6,928.14/10,396.65 = 3,420.06/x
  3. Step 3: Cross multiply
    6,928.14x = 10,396.65 × 3,420.06
  4. Step 4: Simplify right side
    6,928.14x = 35,557,166.80
  5. Step 5: Solve for x
    x = 35,557,166.80/6,928.14
  6. Step 6: Final answer
    x = 5,132.28

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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.