Home / 7,580.85-11,372.81-3,198.30

Finding the Fourth Proportional to 7,580.85, 11,372.81 and 3,198.30

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Solution

The fourth proportional to 7,580.85, 11,372.81 and 3,198.30 is: 4,798.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,580.85 : 11,372.81 = 3,198.30 : x
  2. Step 2: Convert to fraction form
    7,580.85/11,372.81 = 3,198.30/x
  3. Step 3: Cross multiply
    7,580.85x = 11,372.81 × 3,198.30
  4. Step 4: Simplify right side
    7,580.85x = 36,373,642.23
  5. Step 5: Solve for x
    x = 36,373,642.23/7,580.85
  6. Step 6: Final answer
    x = 4,798.10

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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.