Home / 7,131.18-10,692.85-2,199.45

Finding the Fourth Proportional to 7,131.18, 10,692.85 and 2,199.45

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Solution

The fourth proportional to 7,131.18, 10,692.85 and 2,199.45 is: 3,297.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.18 : 10,692.85 = 2,199.45 : x
  2. Step 2: Convert to fraction form
    7,131.18/10,692.85 = 2,199.45/x
  3. Step 3: Cross multiply
    7,131.18x = 10,692.85 × 2,199.45
  4. Step 4: Simplify right side
    7,131.18x = 23,518,388.93
  5. Step 5: Solve for x
    x = 23,518,388.93/7,131.18
  6. Step 6: Final answer
    x = 3,297.97

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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.