Home / 7,276.85-10,905.02-3,318.38

Finding the Fourth Proportional to 7,276.85, 10,905.02 and 3,318.38

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Solution

The fourth proportional to 7,276.85, 10,905.02 and 3,318.38 is: 4,972.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.85 : 10,905.02 = 3,318.38 : x
  2. Step 2: Convert to fraction form
    7,276.85/10,905.02 = 3,318.38/x
  3. Step 3: Cross multiply
    7,276.85x = 10,905.02 × 3,318.38
  4. Step 4: Simplify right side
    7,276.85x = 36,187,000.27
  5. Step 5: Solve for x
    x = 36,187,000.27/7,276.85
  6. Step 6: Final answer
    x = 4,972.89

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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.