Home / 7,831-11,748.12-2,901.34

Finding the Fourth Proportional to 7,831, 11,748.12 and 2,901.34

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Solution

The fourth proportional to 7,831, 11,748.12 and 2,901.34 is: 4,352.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831 : 11,748.12 = 2,901.34 : x
  2. Step 2: Convert to fraction form
    7,831/11,748.12 = 2,901.34/x
  3. Step 3: Cross multiply
    7,831x = 11,748.12 × 2,901.34
  4. Step 4: Simplify right side
    7,831x = 34,085,290.48
  5. Step 5: Solve for x
    x = 34,085,290.48/7,831
  6. Step 6: Final answer
    x = 4,352.61

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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.