Home / 3,390.48-5,084.94-1,310.76

Finding the Fourth Proportional to 3,390.48, 5,084.94 and 1,310.76

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Solution

The fourth proportional to 3,390.48, 5,084.94 and 1,310.76 is: 1,965.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.48 : 5,084.94 = 1,310.76 : x
  2. Step 2: Convert to fraction form
    3,390.48/5,084.94 = 1,310.76/x
  3. Step 3: Cross multiply
    3,390.48x = 5,084.94 × 1,310.76
  4. Step 4: Simplify right side
    3,390.48x = 6,665,135.95
  5. Step 5: Solve for x
    x = 6,665,135.95/3,390.48
  6. Step 6: Final answer
    x = 1,965.84

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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.