Home / 3,981.09-5,955.04-3,685.84

Finding the Fourth Proportional to 3,981.09, 5,955.04 and 3,685.84

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Solution

The fourth proportional to 3,981.09, 5,955.04 and 3,685.84 is: 5,513.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.09 : 5,955.04 = 3,685.84 : x
  2. Step 2: Convert to fraction form
    3,981.09/5,955.04 = 3,685.84/x
  3. Step 3: Cross multiply
    3,981.09x = 5,955.04 × 3,685.84
  4. Step 4: Simplify right side
    3,981.09x = 21,949,324.63
  5. Step 5: Solve for x
    x = 21,949,324.63/3,981.09
  6. Step 6: Final answer
    x = 5,513.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.