Home / 3,137.53-4,309.91-2,979.58

Finding the Fourth Proportional to 3,137.53, 4,309.91 and 2,979.58

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Solution

The fourth proportional to 3,137.53, 4,309.91 and 2,979.58 is: 4,092.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.53 : 4,309.91 = 2,979.58 : x
  2. Step 2: Convert to fraction form
    3,137.53/4,309.91 = 2,979.58/x
  3. Step 3: Cross multiply
    3,137.53x = 4,309.91 × 2,979.58
  4. Step 4: Simplify right side
    3,137.53x = 12,841,721.64
  5. Step 5: Solve for x
    x = 12,841,721.64/3,137.53
  6. Step 6: Final answer
    x = 4,092.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.