Home / 3,115.49-4,668.35-1,958.81

Finding the Fourth Proportional to 3,115.49, 4,668.35 and 1,958.81

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Solution

The fourth proportional to 3,115.49, 4,668.35 and 1,958.81 is: 2,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.49 : 4,668.35 = 1,958.81 : x
  2. Step 2: Convert to fraction form
    3,115.49/4,668.35 = 1,958.81/x
  3. Step 3: Cross multiply
    3,115.49x = 4,668.35 × 1,958.81
  4. Step 4: Simplify right side
    3,115.49x = 9,144,377.53
  5. Step 5: Solve for x
    x = 9,144,377.53/3,115.49
  6. Step 6: Final answer
    x = 2,935.14

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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.