Home / 3,266.30-4,900.65-1,318.70

Finding the Fourth Proportional to 3,266.30, 4,900.65 and 1,318.70

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Solution

The fourth proportional to 3,266.30, 4,900.65 and 1,318.70 is: 1,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266.30 : 4,900.65 = 1,318.70 : x
  2. Step 2: Convert to fraction form
    3,266.30/4,900.65 = 1,318.70/x
  3. Step 3: Cross multiply
    3,266.30x = 4,900.65 × 1,318.70
  4. Step 4: Simplify right side
    3,266.30x = 6,462,487.16
  5. Step 5: Solve for x
    x = 6,462,487.16/3,266.30
  6. Step 6: Final answer
    x = 1,978.53

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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.