Home / 5,493.80-8,240.70-4,860.20

Finding the Fourth Proportional to 5,493.80, 8,240.70 and 4,860.20

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Solution

The fourth proportional to 5,493.80, 8,240.70 and 4,860.20 is: 7,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,493.80 : 8,240.70 = 4,860.20 : x
  2. Step 2: Convert to fraction form
    5,493.80/8,240.70 = 4,860.20/x
  3. Step 3: Cross multiply
    5,493.80x = 8,240.70 × 4,860.20
  4. Step 4: Simplify right side
    5,493.80x = 40,051,450.14
  5. Step 5: Solve for x
    x = 40,051,450.14/5,493.80
  6. Step 6: Final answer
    x = 7,290.30

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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.