Home / 3,981.63-5,494.53-2,213.19

Finding the Fourth Proportional to 3,981.63, 5,494.53 and 2,213.19

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Solution

The fourth proportional to 3,981.63, 5,494.53 and 2,213.19 is: 3,054.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.63 : 5,494.53 = 2,213.19 : x
  2. Step 2: Convert to fraction form
    3,981.63/5,494.53 = 2,213.19/x
  3. Step 3: Cross multiply
    3,981.63x = 5,494.53 × 2,213.19
  4. Step 4: Simplify right side
    3,981.63x = 12,160,438.85
  5. Step 5: Solve for x
    x = 12,160,438.85/3,981.63
  6. Step 6: Final answer
    x = 3,054.14

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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.