Home / 3,044.30-4,198.95-1,980.09

Finding the Fourth Proportional to 3,044.30, 4,198.95 and 1,980.09

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Solution

The fourth proportional to 3,044.30, 4,198.95 and 1,980.09 is: 2,731.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,044.30 : 4,198.95 = 1,980.09 : x
  2. Step 2: Convert to fraction form
    3,044.30/4,198.95 = 1,980.09/x
  3. Step 3: Cross multiply
    3,044.30x = 4,198.95 × 1,980.09
  4. Step 4: Simplify right side
    3,044.30x = 8,314,298.91
  5. Step 5: Solve for x
    x = 8,314,298.91/3,044.30
  6. Step 6: Final answer
    x = 2,731.11

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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.