Home / 2,918.13-4,372.18-1,930.03

Finding the Fourth Proportional to 2,918.13, 4,372.18 and 1,930.03

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Solution

The fourth proportional to 2,918.13, 4,372.18 and 1,930.03 is: 2,891.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.13 : 4,372.18 = 1,930.03 : x
  2. Step 2: Convert to fraction form
    2,918.13/4,372.18 = 1,930.03/x
  3. Step 3: Cross multiply
    2,918.13x = 4,372.18 × 1,930.03
  4. Step 4: Simplify right side
    2,918.13x = 8,438,422.81
  5. Step 5: Solve for x
    x = 8,438,422.81/2,918.13
  6. Step 6: Final answer
    x = 2,891.73

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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.