Home / 5,727.21-7,903.45-3,209.31

Finding the Fourth Proportional to 5,727.21, 7,903.45 and 3,209.31

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Solution

The fourth proportional to 5,727.21, 7,903.45 and 3,209.31 is: 4,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,727.21 : 7,903.45 = 3,209.31 : x
  2. Step 2: Convert to fraction form
    5,727.21/7,903.45 = 3,209.31/x
  3. Step 3: Cross multiply
    5,727.21x = 7,903.45 × 3,209.31
  4. Step 4: Simplify right side
    5,727.21x = 25,364,621.12
  5. Step 5: Solve for x
    x = 25,364,621.12/5,727.21
  6. Step 6: Final answer
    x = 4,428.79

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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.