Home / 3,085.17-4,256.33-1,965.90

Finding the Fourth Proportional to 3,085.17, 4,256.33 and 1,965.90

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Solution

The fourth proportional to 3,085.17, 4,256.33 and 1,965.90 is: 2,712.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.17 : 4,256.33 = 1,965.90 : x
  2. Step 2: Convert to fraction form
    3,085.17/4,256.33 = 1,965.90/x
  3. Step 3: Cross multiply
    3,085.17x = 4,256.33 × 1,965.90
  4. Step 4: Simplify right side
    3,085.17x = 8,367,519.15
  5. Step 5: Solve for x
    x = 8,367,519.15/3,085.17
  6. Step 6: Final answer
    x = 2,712.17

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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.