Home / 4,189.12-5,782.24-2,421.96

Finding the Fourth Proportional to 4,189.12, 5,782.24 and 2,421.96

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Solution

The fourth proportional to 4,189.12, 5,782.24 and 2,421.96 is: 3,343.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.12 : 5,782.24 = 2,421.96 : x
  2. Step 2: Convert to fraction form
    4,189.12/5,782.24 = 2,421.96/x
  3. Step 3: Cross multiply
    4,189.12x = 5,782.24 × 2,421.96
  4. Step 4: Simplify right side
    4,189.12x = 14,004,353.99
  5. Step 5: Solve for x
    x = 14,004,353.99/4,189.12
  6. Step 6: Final answer
    x = 3,343.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.