Home / 3,921.64-5,411.50-2,242.99

Finding the Fourth Proportional to 3,921.64, 5,411.50 and 2,242.99

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Solution

The fourth proportional to 3,921.64, 5,411.50 and 2,242.99 is: 3,095.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.64 : 5,411.50 = 2,242.99 : x
  2. Step 2: Convert to fraction form
    3,921.64/5,411.50 = 2,242.99/x
  3. Step 3: Cross multiply
    3,921.64x = 5,411.50 × 2,242.99
  4. Step 4: Simplify right side
    3,921.64x = 12,137,940.39
  5. Step 5: Solve for x
    x = 12,137,940.39/3,921.64
  6. Step 6: Final answer
    x = 3,095.12

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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.