Home / 2,930.68-4,397.03-1,286.99

Finding the Fourth Proportional to 2,930.68, 4,397.03 and 1,286.99

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Solution

The fourth proportional to 2,930.68, 4,397.03 and 1,286.99 is: 1,930.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.68 : 4,397.03 = 1,286.99 : x
  2. Step 2: Convert to fraction form
    2,930.68/4,397.03 = 1,286.99/x
  3. Step 3: Cross multiply
    2,930.68x = 4,397.03 × 1,286.99
  4. Step 4: Simplify right side
    2,930.68x = 5,658,933.77
  5. Step 5: Solve for x
    x = 5,658,933.77/2,930.68
  6. Step 6: Final answer
    x = 1,930.93

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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.