Home / 3,890.14-5,364.15-2,629

Finding the Fourth Proportional to 3,890.14, 5,364.15 and 2,629

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Solution

The fourth proportional to 3,890.14, 5,364.15 and 2,629 is: 3,625.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.14 : 5,364.15 = 2,629 : x
  2. Step 2: Convert to fraction form
    3,890.14/5,364.15 = 2,629/x
  3. Step 3: Cross multiply
    3,890.14x = 5,364.15 × 2,629
  4. Step 4: Simplify right side
    3,890.14x = 14,102,350.35
  5. Step 5: Solve for x
    x = 14,102,350.35/3,890.14
  6. Step 6: Final answer
    x = 3,625.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.