Home / 3,129.31-4,694.91-1,373.59

Finding the Fourth Proportional to 3,129.31, 4,694.91 and 1,373.59

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Solution

The fourth proportional to 3,129.31, 4,694.91 and 1,373.59 is: 2,060.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.31 : 4,694.91 = 1,373.59 : x
  2. Step 2: Convert to fraction form
    3,129.31/4,694.91 = 1,373.59/x
  3. Step 3: Cross multiply
    3,129.31x = 4,694.91 × 1,373.59
  4. Step 4: Simplify right side
    3,129.31x = 6,448,881.43
  5. Step 5: Solve for x
    x = 6,448,881.43/3,129.31
  6. Step 6: Final answer
    x = 2,060.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.