Home / 3,981.42-5,494.59-2,409.66

Finding the Fourth Proportional to 3,981.42, 5,494.59 and 2,409.66

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Solution

The fourth proportional to 3,981.42, 5,494.59 and 2,409.66 is: 3,325.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.42 : 5,494.59 = 2,409.66 : x
  2. Step 2: Convert to fraction form
    3,981.42/5,494.59 = 2,409.66/x
  3. Step 3: Cross multiply
    3,981.42x = 5,494.59 × 2,409.66
  4. Step 4: Simplify right side
    3,981.42x = 13,240,093.74
  5. Step 5: Solve for x
    x = 13,240,093.74/3,981.42
  6. Step 6: Final answer
    x = 3,325.47

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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.