Home / 7,853.37-11,780.82-2,921.85

Finding the Fourth Proportional to 7,853.37, 11,780.82 and 2,921.85

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Solution

The fourth proportional to 7,853.37, 11,780.82 and 2,921.85 is: 4,383.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,853.37 : 11,780.82 = 2,921.85 : x
  2. Step 2: Convert to fraction form
    7,853.37/11,780.82 = 2,921.85/x
  3. Step 3: Cross multiply
    7,853.37x = 11,780.82 × 2,921.85
  4. Step 4: Simplify right side
    7,853.37x = 34,421,788.92
  5. Step 5: Solve for x
    x = 34,421,788.92/7,853.37
  6. Step 6: Final answer
    x = 4,383.06

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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.