Home / 3,627.38-5,005.80-2,135.36

Finding the Fourth Proportional to 3,627.38, 5,005.80 and 2,135.36

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Solution

The fourth proportional to 3,627.38, 5,005.80 and 2,135.36 is: 2,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.38 : 5,005.80 = 2,135.36 : x
  2. Step 2: Convert to fraction form
    3,627.38/5,005.80 = 2,135.36/x
  3. Step 3: Cross multiply
    3,627.38x = 5,005.80 × 2,135.36
  4. Step 4: Simplify right side
    3,627.38x = 10,689,160.06
  5. Step 5: Solve for x
    x = 10,689,160.06/3,627.38
  6. Step 6: Final answer
    x = 2,946.80

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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.