Home / 5,239.20-7,858.80-4,375.20

Finding the Fourth Proportional to 5,239.20, 7,858.80 and 4,375.20

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Solution

The fourth proportional to 5,239.20, 7,858.80 and 4,375.20 is: 6,562.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.20 : 7,858.80 = 4,375.20 : x
  2. Step 2: Convert to fraction form
    5,239.20/7,858.80 = 4,375.20/x
  3. Step 3: Cross multiply
    5,239.20x = 7,858.80 × 4,375.20
  4. Step 4: Simplify right side
    5,239.20x = 34,383,821.76
  5. Step 5: Solve for x
    x = 34,383,821.76/5,239.20
  6. Step 6: Final answer
    x = 6,562.80

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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.