Home / 3,669.40-5,062.99-2,177.80

Finding the Fourth Proportional to 3,669.40, 5,062.99 and 2,177.80

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Solution

The fourth proportional to 3,669.40, 5,062.99 and 2,177.80 is: 3,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.40 : 5,062.99 = 2,177.80 : x
  2. Step 2: Convert to fraction form
    3,669.40/5,062.99 = 2,177.80/x
  3. Step 3: Cross multiply
    3,669.40x = 5,062.99 × 2,177.80
  4. Step 4: Simplify right side
    3,669.40x = 11,026,179.62
  5. Step 5: Solve for x
    x = 11,026,179.62/3,669.40
  6. Step 6: Final answer
    x = 3,004.90

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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.