Home / 3,930.23-5,894.09-1,297.15

Finding the Fourth Proportional to 3,930.23, 5,894.09 and 1,297.15

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Solution

The fourth proportional to 3,930.23, 5,894.09 and 1,297.15 is: 1,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.23 : 5,894.09 = 1,297.15 : x
  2. Step 2: Convert to fraction form
    3,930.23/5,894.09 = 1,297.15/x
  3. Step 3: Cross multiply
    3,930.23x = 5,894.09 × 1,297.15
  4. Step 4: Simplify right side
    3,930.23x = 7,645,482.89
  5. Step 5: Solve for x
    x = 7,645,482.89/3,930.23
  6. Step 6: Final answer
    x = 1,945.30

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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.