Home / 6,935.60-10,381.80-4,005.20

Finding the Fourth Proportional to 6,935.60, 10,381.80 and 4,005.20

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Solution

The fourth proportional to 6,935.60, 10,381.80 and 4,005.20 is: 5,995.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,935.60 : 10,381.80 = 4,005.20 : x
  2. Step 2: Convert to fraction form
    6,935.60/10,381.80 = 4,005.20/x
  3. Step 3: Cross multiply
    6,935.60x = 10,381.80 × 4,005.20
  4. Step 4: Simplify right side
    6,935.60x = 41,581,185.36
  5. Step 5: Solve for x
    x = 41,581,185.36/6,935.60
  6. Step 6: Final answer
    x = 5,995.33

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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.