Home / 3,720.19-5,137.32-2,396.17

Finding the Fourth Proportional to 3,720.19, 5,137.32 and 2,396.17

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Solution

The fourth proportional to 3,720.19, 5,137.32 and 2,396.17 is: 3,308.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.19 : 5,137.32 = 2,396.17 : x
  2. Step 2: Convert to fraction form
    3,720.19/5,137.32 = 2,396.17/x
  3. Step 3: Cross multiply
    3,720.19x = 5,137.32 × 2,396.17
  4. Step 4: Simplify right side
    3,720.19x = 12,309,892.06
  5. Step 5: Solve for x
    x = 12,309,892.06/3,720.19
  6. Step 6: Final answer
    x = 3,308.94

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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.