Home / 7,127.78-10,692.04-2,200.80

Finding the Fourth Proportional to 7,127.78, 10,692.04 and 2,200.80

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Solution

The fourth proportional to 7,127.78, 10,692.04 and 2,200.80 is: 3,301.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.78 : 10,692.04 = 2,200.80 : x
  2. Step 2: Convert to fraction form
    7,127.78/10,692.04 = 2,200.80/x
  3. Step 3: Cross multiply
    7,127.78x = 10,692.04 × 2,200.80
  4. Step 4: Simplify right side
    7,127.78x = 23,531,041.63
  5. Step 5: Solve for x
    x = 23,531,041.63/7,127.78
  6. Step 6: Final answer
    x = 3,301.31

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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.