Home / 3,672.25-5,065.40-2,179.11

Finding the Fourth Proportional to 3,672.25, 5,065.40 and 2,179.11

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Solution

The fourth proportional to 3,672.25, 5,065.40 and 2,179.11 is: 3,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.25 : 5,065.40 = 2,179.11 : x
  2. Step 2: Convert to fraction form
    3,672.25/5,065.40 = 2,179.11/x
  3. Step 3: Cross multiply
    3,672.25x = 5,065.40 × 2,179.11
  4. Step 4: Simplify right side
    3,672.25x = 11,038,063.79
  5. Step 5: Solve for x
    x = 11,038,063.79/3,672.25
  6. Step 6: Final answer
    x = 3,005.80

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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.