Home / 4,084.50-5,636.61-2,221.50

Finding the Fourth Proportional to 4,084.50, 5,636.61 and 2,221.50

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Solution

The fourth proportional to 4,084.50, 5,636.61 and 2,221.50 is: 3,065.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,084.50 : 5,636.61 = 2,221.50 : x
  2. Step 2: Convert to fraction form
    4,084.50/5,636.61 = 2,221.50/x
  3. Step 3: Cross multiply
    4,084.50x = 5,636.61 × 2,221.50
  4. Step 4: Simplify right side
    4,084.50x = 12,521,729.12
  5. Step 5: Solve for x
    x = 12,521,729.12/4,084.50
  6. Step 6: Final answer
    x = 3,065.67

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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.