Home / 3,139.73-4,321.95-2,714.16

Finding the Fourth Proportional to 3,139.73, 4,321.95 and 2,714.16

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Solution

The fourth proportional to 3,139.73, 4,321.95 and 2,714.16 is: 3,736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.73 : 4,321.95 = 2,714.16 : x
  2. Step 2: Convert to fraction form
    3,139.73/4,321.95 = 2,714.16/x
  3. Step 3: Cross multiply
    3,139.73x = 4,321.95 × 2,714.16
  4. Step 4: Simplify right side
    3,139.73x = 11,730,435.42
  5. Step 5: Solve for x
    x = 11,730,435.42/3,139.73
  6. Step 6: Final answer
    x = 3,736.13

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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.