Home / 3,981.32-5,494.74-2,409.44

Finding the Fourth Proportional to 3,981.32, 5,494.74 and 2,409.44

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Solution

The fourth proportional to 3,981.32, 5,494.74 and 2,409.44 is: 3,325.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.32 : 5,494.74 = 2,409.44 : x
  2. Step 2: Convert to fraction form
    3,981.32/5,494.74 = 2,409.44/x
  3. Step 3: Cross multiply
    3,981.32x = 5,494.74 × 2,409.44
  4. Step 4: Simplify right side
    3,981.32x = 13,239,246.35
  5. Step 5: Solve for x
    x = 13,239,246.35/3,981.32
  6. Step 6: Final answer
    x = 3,325.34

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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.