Home / 7,221.12-10,830.08-2,026.88

Finding the Fourth Proportional to 7,221.12, 10,830.08 and 2,026.88

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Solution

The fourth proportional to 7,221.12, 10,830.08 and 2,026.88 is: 3,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.12 : 10,830.08 = 2,026.88 : x
  2. Step 2: Convert to fraction form
    7,221.12/10,830.08 = 2,026.88/x
  3. Step 3: Cross multiply
    7,221.12x = 10,830.08 × 2,026.88
  4. Step 4: Simplify right side
    7,221.12x = 21,951,272.55
  5. Step 5: Solve for x
    x = 21,951,272.55/7,221.12
  6. Step 6: Final answer
    x = 3,039.87

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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.