Home / 5,724.09-7,899.90-3,206.88

Finding the Fourth Proportional to 5,724.09, 7,899.90 and 3,206.88

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Solution

The fourth proportional to 5,724.09, 7,899.90 and 3,206.88 is: 4,425.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,724.09 : 7,899.90 = 3,206.88 : x
  2. Step 2: Convert to fraction form
    5,724.09/7,899.90 = 3,206.88/x
  3. Step 3: Cross multiply
    5,724.09x = 7,899.90 × 3,206.88
  4. Step 4: Simplify right side
    5,724.09x = 25,334,031.31
  5. Step 5: Solve for x
    x = 25,334,031.31/5,724.09
  6. Step 6: Final answer
    x = 4,425.86

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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.