Home / 3,621.54-4,998.00-2,128.92

Finding the Fourth Proportional to 3,621.54, 4,998.00 and 2,128.92

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Solution

The fourth proportional to 3,621.54, 4,998.00 and 2,128.92 is: 2,938.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.54 : 4,998.00 = 2,128.92 : x
  2. Step 2: Convert to fraction form
    3,621.54/4,998.00 = 2,128.92/x
  3. Step 3: Cross multiply
    3,621.54x = 4,998.00 × 2,128.92
  4. Step 4: Simplify right side
    3,621.54x = 10,640,331.40
  5. Step 5: Solve for x
    x = 10,640,331.40/3,621.54
  6. Step 6: Final answer
    x = 2,938.07

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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.