Home / 7,928.72-11,894.45-2,664.24

Finding the Fourth Proportional to 7,928.72, 11,894.45 and 2,664.24

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Solution

The fourth proportional to 7,928.72, 11,894.45 and 2,664.24 is: 3,996.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.72 : 11,894.45 = 2,664.24 : x
  2. Step 2: Convert to fraction form
    7,928.72/11,894.45 = 2,664.24/x
  3. Step 3: Cross multiply
    7,928.72x = 11,894.45 × 2,664.24
  4. Step 4: Simplify right side
    7,928.72x = 31,689,676.13
  5. Step 5: Solve for x
    x = 31,689,676.13/7,928.72
  6. Step 6: Final answer
    x = 3,996.82

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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.