Home / 4,209.21-5,808.43-2,320.81

Finding the Fourth Proportional to 4,209.21, 5,808.43 and 2,320.81

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Solution

The fourth proportional to 4,209.21, 5,808.43 and 2,320.81 is: 3,202.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.21 : 5,808.43 = 2,320.81 : x
  2. Step 2: Convert to fraction form
    4,209.21/5,808.43 = 2,320.81/x
  3. Step 3: Cross multiply
    4,209.21x = 5,808.43 × 2,320.81
  4. Step 4: Simplify right side
    4,209.21x = 13,480,239.19
  5. Step 5: Solve for x
    x = 13,480,239.19/4,209.21
  6. Step 6: Final answer
    x = 3,202.56

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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.