Home / 7,532.80-11,305.60-3,379.20

Finding the Fourth Proportional to 7,532.80, 11,305.60 and 3,379.20

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Solution

The fourth proportional to 7,532.80, 11,305.60 and 3,379.20 is: 5,071.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,532.80 : 11,305.60 = 3,379.20 : x
  2. Step 2: Convert to fraction form
    7,532.80/11,305.60 = 3,379.20/x
  3. Step 3: Cross multiply
    7,532.80x = 11,305.60 × 3,379.20
  4. Step 4: Simplify right side
    7,532.80x = 38,203,883.52
  5. Step 5: Solve for x
    x = 38,203,883.52/7,532.80
  6. Step 6: Final answer
    x = 5,071.67

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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.