Home / 2,279.04-3,147.84-1,983.36

Finding the Fourth Proportional to 2,279.04, 3,147.84 and 1,983.36

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Solution

The fourth proportional to 2,279.04, 3,147.84 and 1,983.36 is: 2,739.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.04 : 3,147.84 = 1,983.36 : x
  2. Step 2: Convert to fraction form
    2,279.04/3,147.84 = 1,983.36/x
  3. Step 3: Cross multiply
    2,279.04x = 3,147.84 × 1,983.36
  4. Step 4: Simplify right side
    2,279.04x = 6,243,299.94
  5. Step 5: Solve for x
    x = 6,243,299.94/2,279.04
  6. Step 6: Final answer
    x = 2,739.44

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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.