Home / 3,390.93-5,087.18-1,310.96

Finding the Fourth Proportional to 3,390.93, 5,087.18 and 1,310.96

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Solution

The fourth proportional to 3,390.93, 5,087.18 and 1,310.96 is: 1,966.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.93 : 5,087.18 = 1,310.96 : x
  2. Step 2: Convert to fraction form
    3,390.93/5,087.18 = 1,310.96/x
  3. Step 3: Cross multiply
    3,390.93x = 5,087.18 × 1,310.96
  4. Step 4: Simplify right side
    3,390.93x = 6,669,062.42
  5. Step 5: Solve for x
    x = 6,669,062.42/3,390.93
  6. Step 6: Final answer
    x = 1,966.73

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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.