Home / 3,619.19-5,428.78-2,377.62

Finding the Fourth Proportional to 3,619.19, 5,428.78 and 2,377.62

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Solution

The fourth proportional to 3,619.19, 5,428.78 and 2,377.62 is: 3,566.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.19 : 5,428.78 = 2,377.62 : x
  2. Step 2: Convert to fraction form
    3,619.19/5,428.78 = 2,377.62/x
  3. Step 3: Cross multiply
    3,619.19x = 5,428.78 × 2,377.62
  4. Step 4: Simplify right side
    3,619.19x = 12,907,575.90
  5. Step 5: Solve for x
    x = 12,907,575.90/3,619.19
  6. Step 6: Final answer
    x = 3,566.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.