Home / 7,899.82-11,849.37-1,976.77

Finding the Fourth Proportional to 7,899.82, 11,849.37 and 1,976.77

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Solution

The fourth proportional to 7,899.82, 11,849.37 and 1,976.77 is: 2,965.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.82 : 11,849.37 = 1,976.77 : x
  2. Step 2: Convert to fraction form
    7,899.82/11,849.37 = 1,976.77/x
  3. Step 3: Cross multiply
    7,899.82x = 11,849.37 × 1,976.77
  4. Step 4: Simplify right side
    7,899.82x = 23,423,479.13
  5. Step 5: Solve for x
    x = 23,423,479.13/7,899.82
  6. Step 6: Final answer
    x = 2,965.06

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1.5x scale

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.