Home / 3,722.10-5,137.42-2,151.10

Finding the Fourth Proportional to 3,722.10, 5,137.42 and 2,151.10

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Solution

The fourth proportional to 3,722.10, 5,137.42 and 2,151.10 is: 2,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.10 : 5,137.42 = 2,151.10 : x
  2. Step 2: Convert to fraction form
    3,722.10/5,137.42 = 2,151.10/x
  3. Step 3: Cross multiply
    3,722.10x = 5,137.42 × 2,151.10
  4. Step 4: Simplify right side
    3,722.10x = 11,051,104.16
  5. Step 5: Solve for x
    x = 11,051,104.16/3,722.10
  6. Step 6: Final answer
    x = 2,969.05

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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.