Home / 3,992.97-5,510.29-2,315.35

Finding the Fourth Proportional to 3,992.97, 5,510.29 and 2,315.35

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Solution

The fourth proportional to 3,992.97, 5,510.29 and 2,315.35 is: 3,195.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.97 : 5,510.29 = 2,315.35 : x
  2. Step 2: Convert to fraction form
    3,992.97/5,510.29 = 2,315.35/x
  3. Step 3: Cross multiply
    3,992.97x = 5,510.29 × 2,315.35
  4. Step 4: Simplify right side
    3,992.97x = 12,758,230.39
  5. Step 5: Solve for x
    x = 12,758,230.39/3,992.97
  6. Step 6: Final answer
    x = 3,195.17

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1.5x scale

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.