Home / 7,128.12-10,692.46-2,197.32

Finding the Fourth Proportional to 7,128.12, 10,692.46 and 2,197.32

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Solution

The fourth proportional to 7,128.12, 10,692.46 and 2,197.32 is: 3,296.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.12 : 10,692.46 = 2,197.32 : x
  2. Step 2: Convert to fraction form
    7,128.12/10,692.46 = 2,197.32/x
  3. Step 3: Cross multiply
    7,128.12x = 10,692.46 × 2,197.32
  4. Step 4: Simplify right side
    7,128.12x = 23,494,756.21
  5. Step 5: Solve for x
    x = 23,494,756.21/7,128.12
  6. Step 6: Final answer
    x = 3,296.07

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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.