Home / 7,935.50-11,903.80-3,318.50

Finding the Fourth Proportional to 7,935.50, 11,903.80 and 3,318.50

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Solution

The fourth proportional to 7,935.50, 11,903.80 and 3,318.50 is: 4,977.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.50 : 11,903.80 = 3,318.50 : x
  2. Step 2: Convert to fraction form
    7,935.50/11,903.80 = 3,318.50/x
  3. Step 3: Cross multiply
    7,935.50x = 11,903.80 × 3,318.50
  4. Step 4: Simplify right side
    7,935.50x = 39,502,760.30
  5. Step 5: Solve for x
    x = 39,502,760.30/7,935.50
  6. Step 6: Final answer
    x = 4,977.98

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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.