Home / 2,161.36-2,981.64-1,414.99

Finding the Fourth Proportional to 2,161.36, 2,981.64 and 1,414.99

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Solution

The fourth proportional to 2,161.36, 2,981.64 and 1,414.99 is: 1,952.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.36 : 2,981.64 = 1,414.99 : x
  2. Step 2: Convert to fraction form
    2,161.36/2,981.64 = 1,414.99/x
  3. Step 3: Cross multiply
    2,161.36x = 2,981.64 × 1,414.99
  4. Step 4: Simplify right side
    2,161.36x = 4,218,990.78
  5. Step 5: Solve for x
    x = 4,218,990.78/2,161.36
  6. Step 6: Final answer
    x = 1,952.01

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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.