Home / 2,108.88-2,908.98-1,322.28

Finding the Fourth Proportional to 2,108.88, 2,908.98 and 1,322.28

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Solution

The fourth proportional to 2,108.88, 2,908.98 and 1,322.28 is: 1,823.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.88 : 2,908.98 = 1,322.28 : x
  2. Step 2: Convert to fraction form
    2,108.88/2,908.98 = 1,322.28/x
  3. Step 3: Cross multiply
    2,108.88x = 2,908.98 × 1,322.28
  4. Step 4: Simplify right side
    2,108.88x = 3,846,486.07
  5. Step 5: Solve for x
    x = 3,846,486.07/2,108.88
  6. Step 6: Final answer
    x = 1,823.95

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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.