Home / 7,575.20-11,373.40-3,879.98

Finding the Fourth Proportional to 7,575.20, 11,373.40 and 3,879.98

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Solution

The fourth proportional to 7,575.20, 11,373.40 and 3,879.98 is: 5,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,575.20 : 11,373.40 = 3,879.98 : x
  2. Step 2: Convert to fraction form
    7,575.20/11,373.40 = 3,879.98/x
  3. Step 3: Cross multiply
    7,575.20x = 11,373.40 × 3,879.98
  4. Step 4: Simplify right side
    7,575.20x = 44,128,564.53
  5. Step 5: Solve for x
    x = 44,128,564.53/7,575.20
  6. Step 6: Final answer
    x = 5,825.40

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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.