Home / 3,131.54-4,321.35-1,714.95

Finding the Fourth Proportional to 3,131.54, 4,321.35 and 1,714.95

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Solution

The fourth proportional to 3,131.54, 4,321.35 and 1,714.95 is: 2,366.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.54 : 4,321.35 = 1,714.95 : x
  2. Step 2: Convert to fraction form
    3,131.54/4,321.35 = 1,714.95/x
  3. Step 3: Cross multiply
    3,131.54x = 4,321.35 × 1,714.95
  4. Step 4: Simplify right side
    3,131.54x = 7,410,887.03
  5. Step 5: Solve for x
    x = 7,410,887.03/3,131.54
  6. Step 6: Final answer
    x = 2,366.53

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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.