Home / 3,722.15-5,138.32-2,398.10

Finding the Fourth Proportional to 3,722.15, 5,138.32 and 2,398.10

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Solution

The fourth proportional to 3,722.15, 5,138.32 and 2,398.10 is: 3,310.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.15 : 5,138.32 = 2,398.10 : x
  2. Step 2: Convert to fraction form
    3,722.15/5,138.32 = 2,398.10/x
  3. Step 3: Cross multiply
    3,722.15x = 5,138.32 × 2,398.10
  4. Step 4: Simplify right side
    3,722.15x = 12,322,205.19
  5. Step 5: Solve for x
    x = 12,322,205.19/3,722.15
  6. Step 6: Final answer
    x = 3,310.51

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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.