Home / 3,981.72-5,973.54-2,339.64

Finding the Fourth Proportional to 3,981.72, 5,973.54 and 2,339.64

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Solution

The fourth proportional to 3,981.72, 5,973.54 and 2,339.64 is: 3,510.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.72 : 5,973.54 = 2,339.64 : x
  2. Step 2: Convert to fraction form
    3,981.72/5,973.54 = 2,339.64/x
  3. Step 3: Cross multiply
    3,981.72x = 5,973.54 × 2,339.64
  4. Step 4: Simplify right side
    3,981.72x = 13,975,933.13
  5. Step 5: Solve for x
    x = 13,975,933.13/3,981.72
  6. Step 6: Final answer
    x = 3,510.02

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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.