Home / 5,226.45-7,212.88-2,988.66

Finding the Fourth Proportional to 5,226.45, 7,212.88 and 2,988.66

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Solution

The fourth proportional to 5,226.45, 7,212.88 and 2,988.66 is: 4,124.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.45 : 7,212.88 = 2,988.66 : x
  2. Step 2: Convert to fraction form
    5,226.45/7,212.88 = 2,988.66/x
  3. Step 3: Cross multiply
    5,226.45x = 7,212.88 × 2,988.66
  4. Step 4: Simplify right side
    5,226.45x = 21,556,845.94
  5. Step 5: Solve for x
    x = 21,556,845.94/5,226.45
  6. Step 6: Final answer
    x = 4,124.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.