Home / 3,981.64-5,975.22-2,318.53

Finding the Fourth Proportional to 3,981.64, 5,975.22 and 2,318.53

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Solution

The fourth proportional to 3,981.64, 5,975.22 and 2,318.53 is: 3,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.64 : 5,975.22 = 2,318.53 : x
  2. Step 2: Convert to fraction form
    3,981.64/5,975.22 = 2,318.53/x
  3. Step 3: Cross multiply
    3,981.64x = 5,975.22 × 2,318.53
  4. Step 4: Simplify right side
    3,981.64x = 13,853,685.36
  5. Step 5: Solve for x
    x = 13,853,685.36/3,981.64
  6. Step 6: Final answer
    x = 3,479.40

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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.