Home / 7,217.78-10,826.70-2,290.88

Finding the Fourth Proportional to 7,217.78, 10,826.70 and 2,290.88

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Solution

The fourth proportional to 7,217.78, 10,826.70 and 2,290.88 is: 3,436.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.78 : 10,826.70 = 2,290.88 : x
  2. Step 2: Convert to fraction form
    7,217.78/10,826.70 = 2,290.88/x
  3. Step 3: Cross multiply
    7,217.78x = 10,826.70 × 2,290.88
  4. Step 4: Simplify right side
    7,217.78x = 24,802,670.50
  5. Step 5: Solve for x
    x = 24,802,670.50/7,217.78
  6. Step 6: Final answer
    x = 3,436.33

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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.