Home / 5,459.80-8,193.30-3,119.80

Finding the Fourth Proportional to 5,459.80, 8,193.30 and 3,119.80

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Solution

The fourth proportional to 5,459.80, 8,193.30 and 3,119.80 is: 4,681.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.80 : 8,193.30 = 3,119.80 : x
  2. Step 2: Convert to fraction form
    5,459.80/8,193.30 = 3,119.80/x
  3. Step 3: Cross multiply
    5,459.80x = 8,193.30 × 3,119.80
  4. Step 4: Simplify right side
    5,459.80x = 25,561,457.34
  5. Step 5: Solve for x
    x = 25,561,457.34/5,459.80
  6. Step 6: Final answer
    x = 4,681.76

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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.