Home / 7,820.35-11,730.22-2,889.88

Finding the Fourth Proportional to 7,820.35, 11,730.22 and 2,889.88

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Solution

The fourth proportional to 7,820.35, 11,730.22 and 2,889.88 is: 4,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.35 : 11,730.22 = 2,889.88 : x
  2. Step 2: Convert to fraction form
    7,820.35/11,730.22 = 2,889.88/x
  3. Step 3: Cross multiply
    7,820.35x = 11,730.22 × 2,889.88
  4. Step 4: Simplify right side
    7,820.35x = 33,898,891.62
  5. Step 5: Solve for x
    x = 33,898,891.62/7,820.35
  6. Step 6: Final answer
    x = 4,334.70

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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.