Home / 3,625.78-5,005.65-2,387.38

Finding the Fourth Proportional to 3,625.78, 5,005.65 and 2,387.38

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Solution

The fourth proportional to 3,625.78, 5,005.65 and 2,387.38 is: 3,295.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.78 : 5,005.65 = 2,387.38 : x
  2. Step 2: Convert to fraction form
    3,625.78/5,005.65 = 2,387.38/x
  3. Step 3: Cross multiply
    3,625.78x = 5,005.65 × 2,387.38
  4. Step 4: Simplify right side
    3,625.78x = 11,950,388.70
  5. Step 5: Solve for x
    x = 11,950,388.70/3,625.78
  6. Step 6: Final answer
    x = 3,295.95

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1.5x scale

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.