Home / 3,266.86-4,900.30-1,318.60

Finding the Fourth Proportional to 3,266.86, 4,900.30 and 1,318.60

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Solution

The fourth proportional to 3,266.86, 4,900.30 and 1,318.60 is: 1,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266.86 : 4,900.30 = 1,318.60 : x
  2. Step 2: Convert to fraction form
    3,266.86/4,900.30 = 1,318.60/x
  3. Step 3: Cross multiply
    3,266.86x = 4,900.30 × 1,318.60
  4. Step 4: Simplify right side
    3,266.86x = 6,461,535.58
  5. Step 5: Solve for x
    x = 6,461,535.58/3,266.86
  6. Step 6: Final answer
    x = 1,977.90

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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.