Home / 5,121.69-7,682.63-2,200.05

Finding the Fourth Proportional to 5,121.69, 7,682.63 and 2,200.05

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Solution

The fourth proportional to 5,121.69, 7,682.63 and 2,200.05 is: 3,300.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.69 : 7,682.63 = 2,200.05 : x
  2. Step 2: Convert to fraction form
    5,121.69/7,682.63 = 2,200.05/x
  3. Step 3: Cross multiply
    5,121.69x = 7,682.63 × 2,200.05
  4. Step 4: Simplify right side
    5,121.69x = 16,902,159.13
  5. Step 5: Solve for x
    x = 16,902,159.13/5,121.69
  6. Step 6: Final answer
    x = 3,300.11

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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.